Ive had these on my Discovery 4 for a while now and its an excellent tire replacing my Pirreli Scorpion Zero's. I have always used Avons on my past cars but this is my first 4x4. The tire company did not recommend them...after enquiring why it was because they hadn't heard of cooper zeons and customers prefer brands....so with that excellent advice I went for coopers.
Its been pretty wet down here in the new forest but the tire is doing a great job, no problems at all in the corners, very deep puddles are fine at speed.
Ive taken it off road a couple of times (when I say off road I mean very wet grass and firm trails, no heavy mud rutted tracks), again no problems. Its not a like for like comparison but I went to SPA GP last year and parked on the long wet grass, I was disappointed by the grip of the pirreli but then again neither that tire or the cooper are proper off road tires. In any case, we got off the grass much easier than any merc/bmw/audi.
I cant tell the difference between the noise of these against the pirreli, to be honest the disco is a noisy car due to its wind resistance as I imagine most 4x4s are, 10 mins down the road and your tuned out of it anyway. so not worth quibbling over a decibel or two louder than the pirreli.
Cant comment on the wear yet...ask me next year I guess.
As others have mentioned this in an underrated tire in my view, Avon have a great history in motorsport and support many forumals, nothing wrong with their pedigree at all.
I paid 577 for four tires fitted and including VAT.