I'm running the 205/45/16 595RS-Rs
Grip - lateral: more than stock
Grip - forward: more than stock
Grip - wet: Hard to say since I don't really push the car in the rain. On simply wet ground and driving like a normal person, I'd say the same, but I try to avoid standing water for sure because they can hydroplane pretty easy
Feedback: same
Road Noise: With windows up, I notice no difference. with windows down, wind noise > tire noise. Regardless, I've never had an issue with tire noise on any car I've had
Lifespan: no idea - I only have 2,300 on the RSRs, and had 5,200 on the RE050As. I have winter snows I'll put on when it gets cold, so if I can get 12,000-15,000 out of them I'll be happy
Looks: Better IMO, the RE050As to me don't have an aggressive looking tread pattern