My car was delivered July 2009 on Bridgestone Potenzas, so far I have had no issues re noise or bumpy ride.
I have just returned from 2 weeks driving around the roads of Devon putting in just over 2000 miles and the tyres have been perfect no problems at all.
When my tyres are due for renewal I would be quite happy to get the same rubber again.
By the way my car is booked in for its first service next week and as I am on the service plan here's hoping that it will cost me nothing, ie no little nightmares that I am unaware of.
Gizzy