We've gone to BB quite a bit this year, product pricing or looking for items you can'f find elsewhere and so on and so on. We've made purchases and if we've encountered a problem, we've no problem replacing it.
One salesperson in particular, Victoria, helped us out on more than one occasion. She multi-tasked like a champ for just the two of us (ordering online Christmas present at one hub to keep it a secret, going to another hub to order another product and so on).
I do think they're overpriced, but that's what happens when you're the only store carrying specific electronics and such. BUT - just show them an ad from a circular or picture print (like from BJ's shelving), and they'll adjust the price to match it. I've even had one customer service rep pull WalMart's sale price for a movie I was buying off of the net and it was the same price. So, there you go.
I haven't had to use my warranties as of yet, and I hope I don't have to (I'm kind of skeered now).
But overall, we've had mostly pleasant experiences. Some sales folks are tards and some customers should just stay home and order online, containing their hate and maladjusted attitude. But, some sales folks are the bomb and some of their customer service reps actually know what they're doing and do it well.
So, that's my opinion.