They're awesome. I got my very first "real" mod from them (a sigelei zmax flat-top, back when that was absolutely THE SHIT!).

I've gotten a lot of driptips from them over the last few years, and they're STILL my first online source to look for a driptip. Only ever had one problem with them: I ordered a white-with-black-streaks acrylic ming tip... and it's got a fucking hole drilled in it! It sure wasn't advertised that way. I contacted them about it, but they didn't really offer me any satisfaction, other than "on your next order, mention it, and we'll include another one" -- which wasn't really helpful as that was intended as my last order, when all the FDA shit was hitting the fan last year. But I guess for 99 cents... all I can really do is shrug. Shipping another one by itself would probably cost more than 99 cents!
Andria