Hobby Lobby is the only fabric store near us so I shop there all of the time. I've found some beautiful brand name fabrics and they also have a lot of great holiday fabrics, (their Halloween line is particularly cute this year). I don't have a smart phone so I print off a few coupons every week to keep in my purse, just in case!
I worked in fabric stores for years so I know what to look for. Fabric that seems thin, too shiny, or has bad color registration, (the print is off), are ones I never purchase. I have passed by some fabrics at Hobby Lobby because the weave was too loose and you could easily see through it. Also, a lot of their cottons are brushed so they're a little stiff for quilting.
My main complaint is that they don't add new fabrics often enough! But deals like .99 patterns and notions at 50% off make up for that. All in all, if you have a Hobby Lobby coming to town I think you'll be pleased. Their regular prices are a little high in the rest of the store, but the 40% off coupons make it worthwhile to shop there for all kinds of stuff.