I guess it depends on what you're used to. If you're coming from a Lexus, this car will probably feel a little rough.
I understand that the 17" wheels give a bit of a harsher ride, because there's not as much sidewall on the tires to help absorb bumps.
Anyway, I've gotta agree with the other posters here. I have not found the ride to be inappropriately or uncomfortably rough.