I had these on all four wheels of my BMW 530i Touring and I'm about to replace the rear wheels with same again. They lasted about 15000 miles and the fronts are still have good tread.
I can neither rave nor attack these tires but I've no complaints. I don't think I've enough experience to provide a scientific comparison between alternative tires but I've never had a hairy moment in wet or dry, it goes around corners, and it stops in the wet. I've never had the car slide around an island on a wet road for instance, but then again, perhaps I'm not trying hard enough. ABS and traction control help of course, but I am often surprised that I've *not* had a hairy moment even when I've gone into a corner too fast or left my braking too late. I'm surprised in the wet because the 235 is a pretty wide wheel. I guess that's a good sign but as I say, I've not driven this 530 in anger with a selection of tires on test.
I've largely bought Michelins on BMWs before and soft Pirellis on hot hatches briefly when I was younger. The Michelins obviously last better, and at 10K/year I'd probably get at *least* 2 years out of some Michelins on the rear so they'd probably work out better value, but at two significant risks: 1) in that time, there's more chance a tire will be nicked on a kerb and need replacing anyway before it's due, or 2) the car might start sliding around on the harder compound.
So on that basis, I'm going to stick with what I know. The price point is reasonable and the tires do what they say on the tin.