Agreed that the ride over choppy surfaces is not a smooth as on some other larger Buicks...that's a result of the 18" 45-series tires (Buick, IMO, should have used 16" or 17" wheels and 55 or 60- series tires, but the existing specs aren't bad). The interior materials are a definite step up from what we've come to expect from past GM products in this size/price-range. As far as fit/finish goes, most of it is pretty good, but I agree the swirly-looking fake wood trim-strips don't fool anybody. The two seats (cloth, leather) are quite different in how they look and feel. The leather seats conform more to the natural curves of human backs and thighs.....but have less padding. The cloth-insert seats are, overall, more thickly-padded (a feature I like)...though somewhat uneven with the padding-thickness. In my experience, they don't, in themselves, make a sore back any worse than it would otherwise be (my back/leg problems, when they hit, are due more to simple sciatica than the shape of seats, and I can get sciatica on almost any type of seat).