I purchased the Auction Theme and the wallet theme, and was very good. The support was fast as well, but i had to wait a few hrs for the first reply (maybe because the timezone problems as i was in a different timezone at that time)
Overall our client website was completed within the timeframe and really the auction theme has the most options i have ever seen in a wordpress auction application (theme or plugin). I really recommend their services. Also supporting bit coins which is a huge plus.