I have the SX2.7 and i love the little machine. Mine was an upgrade from the x2.

*The machine is nice, quiet and smooth (compared to my geared x2).
*The torque is great.
*50mm Facemill is no problem also.
* Tapping function is also very good.

My only issue is the spindle speed and sometimes after alot of use the spindle turns off and on restart goes backwards :S

Im currently converting mine for CNC with ATC. Controlled with a Masso