I finally ordered one of these instruments and it's actually much better than I expected. As others have stated the wood used seems fine, very nice flame on the back, and the workmanship is top notch for this amount of money. The pegs are nice and tight. I was very impressed with the scroll work and finish quality. The people building the instruments obviously take more care in the detail work than I expected.
Although I haven't tried to tie frets yet it seems like there will be enough room for gut frets. I probably won't use frets so it's not a huge deal to me one way or the other.
My email correspondence with the seller was fine. Their English was good and didn't seem artificially translated.
The one thing I wish they would have mentioned is the instrument comes with a modern bow and not a baroque model. I'll eventually grab a cheap stick from ebay but it would have been nice to have the whole package to begin with.