Petsmart on University Drive and Explorer (Target Shopping center) is very clean with nice tanks, and I've always seemed to have semi-knowledgeable people helping. Most of the employees that I've talked to keep fish.
I like that the price stickers state a little bit about the max size of the fish, though they do lie a little sometimes. Plant selection a little limited, but not bad.
30G AquaClear50: Lightly planted, 2 glofish, 2 platies, 2 ottos, 4 kuhli loaches, a mystery snail and ghost shrimp.
10G Sponge filter: Heavily planted, 2 ottos, 2 kuhli loaches, red cherry shrimp
2.5G MiniBow Hood Filter: Planted, Betta named Sushi