Hey G20Rob3,
I had my stock tires on for about a year before I bought my rims. It wasn't too bad, I had the Potenza 195/60 tires. The ride quality was a lot better than with the 17's I have now, because the tires were a lot thicker, so it would take a lot of the bumps and bruises and not the rim. but I won't go back to my stock rims unless I absolutely have to, they just don't look as nice.