My wife loves this chain. Me? I can go either way. It's Bed Bath and Beyond for Babies, and it states their goal in the name of the store: Buy tons of useless shit you don't really need for your baby, and some stuff you do need for baby. So yeah, I'm pretty much over the whole "let's prey on parents' deepest feelings for their new baby and tell them they need this stuff even though they really don't" thing.
With that said, at the Buy Buy Babys I have been too, the customer service has been really great. We shopped strollers there and the employee was super knowledgeable and happy to get any stroller we wanted to test drive down off of the shelf for us. They also had a great selection. The same can be said about the car seats.
Personally, I tend to avoid places like this, mostly because I easily fall prey to their desire to open up my wallet. But sometimes you just have to buy stuff for baby, and this is as good a place as any to do just that.