I've put a lot of work into this machine but the controller and software are just crap. It would stop engraving in the middle of work for no good reason and what's going on with MOSHI DRAW - I could not figure out how to use this crappy software!

I want something that will work as should and will enable usage of normal software.

I've seen several options on eBay:
New DSP CO2 Laser Cutter ENGRAVER Machine LCD Motion Controller System PH3 | eBay
CO2 Laser Engraving Cutter DSP Motion Control System PH3 0 | eBay

Any suggestions from someone who has experience with any of these or similar?