-My first purchase was made in July 2011: A body 1 with Cadence face. Everything was positive as far as the purchase itself and she arrived within 3 weeks of ordering so that was fantastic. This was the first silicone doll I've ever owned and the quality control was very good. Joints were tight and all posable, no stains or blemishes, etc.
After about 2-3 weeks of ownership and several pics with her, her right shoulder joint went completely loose. I'd done a few standing doggy type shots of her on the table and that may well have contributed to it. It's also possible the joint screw was never tightened properly but no way to be certain. Anyway, she was shipped back for repair since it required going deep into her chest cavity and she meant too much to me to risk further damage. I don't blame BT at all for it and they did ship her back at no charge.
-Next order was around 8 months later and was a custom Winter face with blue eyes. BT totally knocked this one out of the park! She was sent with hi-realism eyes over a year before they would start offering them through their site and the face itself arrived in pristine condition. Unfortunately, the next several orders didn't go too well from there.
-I ordered a set of the hi-realism eyes for Cadence last summer when they came out and was told to expect about a 2 week wait after payment. Two weeks went by and I received nothing and didn't get an email so I inquired. I was told they weren't in production yet so it would be a few weeks more. After pointing out that they shouldn't be taking payments on a product not in production yet and threatening to contact my credit card company (plus a hot post on this site), the eyes arrived a few days later.
-Purchase no.4 was a body 2 by itself so that Winter could have her own body instead of sharing one with Cadence. I informed the customer service rep that this doll was strictly for photography and that I needed the joints tight as possible for posing. On the positive side the doll arrived inside a month, but her knees were so loose that her feet would hit the ground when I picked her up. BT tried to say that knees can't be tightened very much, but that doesn't carry much weight when the doll in my bed has super tight knee joints and can do standing doggy poses in her dolly sleep. Also, the website is loaded with posing pics that require tight knee joints so it was just nonsense.
I kept the doll and said nothing publicly, selling her on ebay about 6 months later (and had to give up the Winter face or else take a very large wet bath on the investment).
-The most recent purchase was last month and was another custom Winter face to replace the one I'd lost for photography. I sent a close up face shot and was told no problem at the agreed upon price. The order was for hi-real blue eyes like the previous one, natural lips and medium eye makeup. She arrived with old type green eyes (not too great for pics) and very light makeup.
They said they had found a set of blue eyes like I'd ordered and sent them (so in other words they could have gotten the order right to begin with). But Season face eyes aren't designed to be messed with like C-Series. Both BT and a few here said it was as easy as popping out the old ones and pushing in the new ones. I followed those instructions and 3 of her eyelashes came off when I pushed the new (correct) blue ones in. So I've sent the face back to BT on my dime and asked them to repair the lashes and do her makeup properly. They say they'll do so but none of this should would have been necessary if somebody in customer service had taken about 30 seconds to glance at her to make sure the specs were correct before she was shipped.
I want to make clear that this isn't meant to be a bashing post. I adore BT dolls and give them an A+, customer service overall a solid 'B', but quality control a 'D' (poor) at best. You have a potential life long customer here guys and you're blowing it. The lack of quality control is a pretty simple fix so please do it. I'm still on your side and plan to order from you again this year, so help me to help you by doing your job right after we agree on a price.
Thanks
Some of your poses are tough to do and maintain but most entertaining. 
