I have 20" wheels with low profile tires on an Audi A6 S-Line, and the Pirelli's PZero that the car came with offered good road feedback but were getting increasingly hard, uncomfortable and noisy as they started to get older. So when they finally went, I wanted to replace them with something more quiet and comfortable, but also good in the wet and with a decent handling level. The NFera SU1 is exactly the type of tire i was looking for.

Positives: very comfortable, extremely quiet for a 255/35/R20 tire (Nexen says 68dB), good wet grip, great price
Negatives: not so good road feedback and dry braking (compared to the PZero), handling is average

The wear level is nothing special, it wears a bit faster than the PZero, because the SU1 is a softer tire, but not by much. I have done about 12k miles and they seem to be about half their original thread height.

These are comfortable, quiet and grippy tires which inspire confidence in both wet and dry conditions, but even with a relatively easy going driving style like mine (I try and eke as many miles out of a tank of fuel as possible), these tires are just too soft for a heavy car like the Merc CLS and wore out way too quickly for me to ever consider buying them again. I bought them in April last year and they're already almost totally bereft of tread after only 10 months and 11,000 miles. With a deeper tread depth from new, the Nexen N8000's I had on before them seem to be slightly harder wearing and just as comfortable and grippy, but I think I'll give the (allegedly) longer lasting Barum Bravuris 3HM's next time as I just can't be done with the time, trouble and cost of having to replace my tires every year.

Have been using these on my A1 Sport Plus. 189hp in a light front wheel drive would generally be considered a recipe for serious wheelspin and understeer, but these tires transformed the car into an incredibly grippy hot hatch. Combined with lowered suspension, the car is totally transformed and I definitely would recommend them to anyone particularly with a high powered front wheel drive. Nitrogen filled, so fuel economy has seen slight improvements and tires are reasonably comfortable with little to no increase in road noise. In the wet, they can be prone to aquaplaning early on, this would be my only complaint.

I shopped around, did my research based on performance and particularly wanted a balance of low noise and low rolling resistance plus was limited by my tire size on my i8 wheels but of all the options including Goodyear, Continental and Dunlop, these scored high on paper only short of the Goodyear Efficientgrip and were less than half the price of the primes above and better than all mid-range tires on price and paper.
I'm so glad I went with the Nexen N'Fera SU1, although they have 10% less sidewall than the Bridgestones before, they have a smoother ride on fine sharp surfaces (man holes, repaired tarmac, concrete joints etc) and are hugely quieter, almost silent below 30mph which is fantastic for my car in electric mode, its near silent.
The tires are also lighter in weight helping steering reaction in spite of their size and in every aspect improving and helping the suspension to perform. I've even noticed as a result that my front top mount is worn which was indistinguishable with the harsh and loud Bridgestone's before.
My GTE has a capacity to lay down torque ~300ft.lbs in a go and even flooring it on wet roundabouts' hen the inside would break traction the car steered well and the drift/understeer was very controllable and correctable. I'm very impressed by the progression and control given the price range if the tire.
I absolutely would recommend these and no doubt will be getting a new set in no time due to the mileage I do. Right now though they have only done a few miles so still fresh.

Positive sides of this tire are precise handling, excellent braking characteristics both on straight road or curves, very good wet grip, I was never even near to aquaplaning. Very low wear, somewhere over 1mm in 10500 km on a car that is not gentle towards tires. Not so comfortable, it seems to me that they transfer a lot of vibrations to chassis. Moderate noise, it appears to me that they have substantial rolling resistance based on the fuel consumption. Pretty difficult for parking maneuvers as they give more resistance than my winter tires. They came pretty cheap so I would buy again.

I was quite suspicious of the Nexens before buying, but the seller did a good job convincing me. I had bought several tires from him before so I trusted his opinion. Switched from Michelin Pilot Sport 2 to these.

A few thousand km after I'm really happy with them. Quieter than the PS2, better dry and wet grip. Perhaps the progressiveness is a bit worse than on the PS2, but it is hard to estimate well as it would need a track day, too scary to find the limit in normal traffic!

Not the tire for the a5 quattro at all, weak sidewalls, poor handling, unpredictable. You can feel the tires sufferring under heavy braking or cornering The grip and wear levels are ok. I find tramlining and intermittent noise to be an issue and the tires have worn unevenly giving strange handling quirks.

You get what you pay for and this tire is no exception. I would not reccomend this tire for the Audi A5 3.0 TDI at all and am changing them after 10k miles as I cannot risk the tires degrading further.

It's the quietest tire I've seen ever. No noise at all! Much more better than previous continental tires. Very good grip in dry and wet conditions. But it's not so shiny black. Very comfortable. Traction is very good.

Bought the Roadstone version of these tires. They have performed very well, however they do tend to leak a little. Need air every week. They have now been on the car for just over 2 years and have covered 19000 miles, but the carcase is now starting to split between the tread on the outside edges, still plenty of meat in the middle. Had them swapped round last year, 5mm on the front and 4mm now on the back. Because of the splitting I'm having to change them now, so I wouldn't buy them again. I had Continentals on before tread wore out before any signs of splitting.

Habe sie für meinen AMG E55 und bin sehr zufrieden! Sie sind sehr leise und haben eine starke Haftung! Ich würde sie mit Premiumreifen vergleichen (Conti, GoodYear...), aber der Preis ist doppelt so gut wie bei Premiumreifen. Als ich Conti-Reifen hatte, gab es Probleme mit dem Grip (feuchtes Wetter), die Räder drehten durch, das ESP schaltete sich ein. Mit dem Grip der Nexen ist das alles kein Thema mehr.

Ich bin diese Reifen für über 6.000 km gefahren und bin bis jetzt sehr von ihnen beeindruckt – Grip bei Trockenheit und Nässe ist sehr gut, besonders für den Preis. Wenig Geräuschentwicklung, sogar bei geöffnetem Dach. Auch wenn ich das Auto ans Limit bringe, machen die Reifen das super mit.
Ich werde sie definitiv wieder kaufen.

Ich glaube ehrlich, dass die Firma Nexen mit diesen Reifen absichtlich Verluste macht, um in Europa Marktanteile zu gewinnen. Diese Reifen sind so gut wie die von Premiummarken – zum halben Preis.
Nachdem ich einige Rezensionen gelesen habe, wagte ich es und kaufte 4 davon. Nach meinen schlechten Erfahrungen mit Achilles ist das Auto durch sie total verwandelt.
Grip bei Trockenheit und Nässe ist exzellent. Man kann bei feuchtem wie trockenem Wetter mit gutem Gewissen sportlich fahren. Außerdem sind sie sehr leise.
Ich wage die Behauptung, dass der Nassgriff dem der Uniroyal gleichkommt, und den Reifen nennen Sie „Regenreifen”. Aquaplaning ist kaum vorhanden.
Das Straßenfeedback könnte für meinen Geschmack etwas besser sein, ist aber noch sehr in Ordnung. Die Seitenwände sind weicher als bei Sportreifen. Ich habe die XL-Variante und gebe ihnen 2,8 bar, was gut für mich funktioniert. Keine Probleme, es sind ja ohnehin keine richtigen Sportreifen.
Kein Verschleiß nach 5.000 km. Habe ihnen beim Verschleiß jetzt schon ein hohes Rating gegeben, weil sie immer noch so gut wie neu sind. Muss natürlich erst noch sehen, wie sie nach 25.000 km aussehen.
Klasse Reifen zu einem großartigen Preis: Wärmstens empfohlen, und ich würde sie definitiv wieder kaufen. Fühlt sich fast so an, als hätte man sie einfach kostenlos mitgehen lassen :)
Wenn ihr das lest, braucht ihr wahrscheinlich neue Reifen für euer Auto. Zögert nicht und kauft diese Reifen hier: ihr werdet erstaunt sein!