build quality in american cars is terrible. they may last a while, but they won't feel crisp and new for very long.
any new car is going to be pretty reliable, but a buick won't last as long as a honda or toyota or subaru, for sure.
why would you strip the buick labels off before driving it?
have you driven a buick? they're absolutely uninspiring to drive. it's like driving a giant boat down the road. their gas mileage is nothing spectacular, either.
they are quite spacious, and "nice" for what they cost... but i would never invest in one.
the buick lucerne is a good car if you're completely not interested in a sporty car and you've never driven any non american luxury car, and you don't mind people piling up behind you wondering why you stole some old lady's car.