extrememly reliable and customer service is top notch. Tons of barrel configurations. They come very highly recommended. Ive owned several uppers and all have been very good quality and function great.
They're a smaller company that does lots of stuff in-house. They're close to my home and I've talked to their guys quite a bit at gun shows. They're also well-known and respected on ARFCOM. I personally think their prices are a little proud, but if you have the $$ and want something they make, I wouldn't hesitate to do business with them.
I bought one of their uppers. Nice stuff but I'm still deciding about tooling up to build the next 3 or just buy them again. My sons have to have something to shoot . . . before it's all outlawed. At least that's my excuse