I have the beta and it seems to work well but doesn't yet support things that I consider essential such as my touch screen and VistaCNC pendant so I'm not yet using it for production. That said, Path Pilot seems to be the future path for Tormach and Mach3 is a dead end. With Path Pilot you already get a better trajectory planner, nicer user interface, easier ways to move files to the machine (Samba share), etc. Couple that with probably better future support from Tormach and on this forum, no charge for the software (or no savings by using Mach3) it seems silly to not seriously contemplate using PathPilot. If I were buying a new Tormach today I would order their machine controller (which includes the special card required for PathPilot), run Mach3 initially and then upgrade to PathPilot when the production version is released.