Can't comment on the wear rate as we have only had them on since November. They have been much quieter and given a more comfortable ride then the tyres they replaced. The steering feel on turn in is a little less sharp but not significant. wet grip has been good, not had much experience of the dry but it has been at least average. In the snow this last few months they have been excellent, a significant improvement over summer tyres, I've definitely driven in conditions that would have left me stuck had I been on regular summer tyres.
Fitted to our rear wheel driven BMW 116i - Quiet, Good wear and comfortable with very low noise. Drove up quite an incline in snow / slush covered road - they just gripped and got on with the job, no dramas! They grip very well in wet and admirably in dry. Not as good as summer tyres in summer but they are all season. Only slight downside is that they are not really progressive. They tend to just let go if pushed round bends. Recommend these for any lower powered car.
I bought these after previously using Kleber Quadraxer and Goodyear 4 Vector Seasons on other cars. They are fairly quiet. They grip well. However there is a major downside which is the sidewalls seem very stiff. These tyres are sold as energy saving and have a low rolling resistance, I'm sure there are compromises in the design to achieve this. They filter out high frequency noise but don't seem to filter out low frequency noise very well, so the sound of rough tarmac and little surface irregularities can be felt and heard. Bumps come through and make the ride quite bad, I have had to deflate the tyres below the recommended level to try and get the ride back to normal. Not only that but even with the tyres pumped up the MPG of my car did not improve at all! So I cannot recommend these really. I would go back to the Kleber Quadraxers which give a smooth ride, are better value even though they may grip a little less. The goodyear vectors were somewhere in the middle not soft and not hard and were more expensive.