I've been using the Taig mill for about three months now. I have had no problems with it, and it runs flawlessly. I recently re-adjusted the x axis nut because I wasn't happy with the backlash,(.005) but now have it down to .0005! I run the mill via Mach 2 latest version and it is just great. Using Mach 2 you can increase the motor frequencies and get slightly faster rapids. I found that the standard 30 ipm is fine however. Anyway, it has made me many parts already, and it is built beautifully. Hope this helps.