I made the mistake of purchasing one of those Thai
units.  Don't waste
 your money.  Flakey software, scattered documentation, zero support
 (doesn't answer e-mails). 
    Me too. And  I loved it. The software was strange, scattered
documentation, zero support, but I never need it either. I know how to
program an EPROM and it just worked for that (and PLDs and microcontrollers
too).
    Cheap tool, cheap service. But in my case it worked.