I'm here in Austin, so I pop on in AHS whenever I need something. The shop is huge and well stocked, they just moved to a new location a month or so back and expanded their storage space exponentially so they keep a ton of everything on hand (I was offered a tour on Saturday... reminded me of the warehouse at the end of Raiders of the Lost Ark). The staff are friendly, helpful, and most importantly they know their trade (for some reason I always manage to get Ed when I go in to shop, and that's just fine... he's been awesome and educational).
As for their kits... they rock. I've not been disappointed with them one bit. I do, however, deviate from their printed instructions by leaning more toward DeathBrewer's stovetop easy partial mash technique, but all the ingredients and yeast are top notch.