I live in Knoxville, TN. There is a Gander Mtn store in West Knoxville in a very expensive shopping area. There is a BPS about 20 minutes East of Knoxville at Exit 407 off I-40...that is where you turn to go to the Smokies, Pigeon Forge, Sevierville...a lot of folks get off at that exit and there are lots of shopping areas in that location. So, we have both withing a half hour of us.
The BPS is probably fairly standard everywhere you go. I've been to the ones in Nashville, Atlanta and Myrtle Beach also...they are pretty much the same. I like the stores, they are clean, orderly, fairly good prices, a little on the tourist side, but they are OK. I really like them for fishing stuff, but they are OK with guns. I have purchased a Browning Buckmark from them at a fair price. I go into BPS to get a Starbucks coffee with my family and look at the fish - it's sort of a mini-vacation type thing...not the same as going to a gun store.
The Gander Mountain in West Knoxville is the only one I've been to. The stock is haphazard at best...things are often out-of-place and mis-priced. I have some awful war stories from their gun department. I've bought three guns from them and have had a Colt 1911 in there for repairs (which were not satisfactory...I'm being kind). I know one of their employees and he told me that they were one of the most "bleeped-up" stores he had ever seen and he doesn't understand how they stay in business. Their ammo prices are WAY higher than anyplace else, and their gun prices are usually very high also. So, after getting burned a few times, I shy away from them.