I have the same X3 but by a different supplier and am very happy with it, only needed to adjust the spindle bearings on delivery and replace one worn toothed belt in about 5years use.
I had the caliper type scales on it but have now changed these to Glass scales and a Sino readout which is so much more reliable than the cheap ones.
I’ve not really felt the need for power feed but it would be handy on larger surfaces. If buying again I may be tempted to go for the long table version, more to be able to handle larger castings not to be able to keep a rotary table and vice mounted all the time as I find the movement tightend up a little when the table is at its extreams with a lot of weight at one end.
Jason
Edit, some photos of a power feed being fitted
here
Edited By JasonB on 08/04/2011 07:36:42