This place is pretty dingy. Sure, you might find a decent brand here or there, but it's not worth digging through the racks of absolute CRAP to find it. When it comes to clothes and shoes, I prefer Savers. I don't like Savers, so that should tell you something. The worst of it is the shoes - oh my goodness. Some of the pairs they have don't even really constitute SHOES anymore... missing soles and heels, lace-up shoes without tongues... I've seen it all.
Plus one for the furniture. I would say that about 30% of the furniture in my current apartment is from this Salvation Army (mostly tables, a desk, and our headboard and footboard). The prices are usually fair and they have some interesting things from time to time. Unless I'm looking for something specific, though, I usually don't bother.