First impressions.
What are yours when you walk in?
Is the equipment in poor shape?
Are tanks dirty?
Fish sick?
That speaks about the quality of a fish store.
Sometimes you get burned, sometimes you get a smoking deal.
Thats the nature of the beast.
Having a return policy isnt a deal breaker for me.If you walk out the door with a healthy looking fish, chances are it is. 9 out of 10 fish die because of something your doing wrong, and they know it, thats why they dont offer refunds. People are just dumb, its fact.
I have a LFS that offers a 10 day refund if you bring in the dead animal and a sample of the water(personally I think that is easy to scam...just mix up a fresh batch of saltwater). I wont shop there, they have a young teenage staff that simply doesn't know enough to even properly take care of the animals, and the equipment is poorly maintained. So even with a smoking return policy, I still wont bite. In fact my favorite LFS has overpriced stock, and zero refunds. Yet they know their stuff, their tanks are pristine, and they have a fantastic selection. Its my fav place to pick up livestock.