Enkei RZ5 wheels on Liftback

[kennywhy]

Hi.
I just ordered 15" Enkei RZ5 (silver/grey) wheels with Kelly Navigator Platinum TE tires for my ’07 silver liftback. Belle Tire Company, here in the Detroit area told me the ride would be fine, and perhaps better than what I've got now with the base 14" tires with this combo. Is the ride better with a slightly larger tire, or negligible?
Just wondering if anyone else out there has this Enkei wheel, or perhaps photos of them on the car. I'm too old for a tuner with giant wheels and tires, and the rough ride that can go along with them. I just wanted to upgrade the look and ride a bit. I also would like to keep these wheels on all winter, though I will chemically protect the hell out of them, and keep them clean. Also are curb feelers cool for this car, or a stupid idea? I'm careful, but I don't want to scratch the new wheels.
Thoughts? Opinions? Comments? Sarcastic insults?