I have Infinity, Master Box, MCN Pro, GPG Dragon and Volcano. The first two is dead the other three is still usable. The best is to combine GPG and MCN together. GPG has problems under Win7 64bit in some cases so sometimes I have to switch to WinXP. The handling of Volcano is too complicated the UI is messy and that box is the weakest in automatic pin finding. In the other hand, Volcano can help you occasionally if the other two boxes fail. Volcano can be the best if you mostly work with MStar and Coolsand CPU's. So, the conclusion is that you have to buy at least three boxes for Chinese phones.