I've got two MEC reloading machines, a Sizemaster and a 9000GN. Excellent machines. Here's one caveat: You will see in the manual many phrases like "such and such is pre-adjusted at the factory". Ha! Don't take their word for it. You need to check everything, and will probably make several adjustments. Here are the adjustments I ended up making on the new 9000GN (at least the ones I remember):
1) Resizer was factory adjusted to resize over maxiumum allowable size. Shot a couple of boxes before making adjustment. Couldn't chamber a few shells.
2) Primer feed timing
3) Timing of powder drop
Overall they do a good job, but just don't assume everything is perfect and double-check things.