As a company I think it's fine. I don't buy things like nice tack or show clothes there but for things like saddle pads and barn stuff it's great. I used to LOVE that it was just a few minutes away back when it was a part of PetsMart. Too bad.
I usually go by brand name. Check the name of what you want then check other suppliers. If they are the cheapest, go for it. Say if its a Weaver product, its going to be the same no matter who the seller is but the price may be way different.