Not really anything I don't like, REALLY - not just bs'ing to sell it. I've just been spoiled by my first holster - high noon mr softy. It's just so soft of leather and thin that its really like not having a holster almost - BUT, its not tuckable, the clip SUCKS (but I changed mine) and you don't get a combat grip (which REALLY isn't the best for draws) but I've just gotten so used to it. That and I just got a Dale Fricke archangle holster for when I do want/need a combat grip.
Trust me, before I got the silent thunder I looked at all the reviews I could find- couldn't find a bad one, I've had it for months - can't say a bad thing about it. I could have sent it back and got a refund, but I knew it was a great holster once I used it. The fact its tuckable is so SWEET, and the clips are the best I've ever seen for dissappearing on a belt. But like I said, I've just got other options I use. If your on the fence - I totally recommend it, get it, you won't be sorry - if so you can return it for a full refund within the first 7 days.
