Tested out my PMX tonight. Based on the question for the forum, I.e. can I go wrong with a paramount mx: I don't think so. After homing the mount, roughly adjusting mechanically (I.e. no slewing or using the joystick) for polar alignment then playing around a bit, I got more accuracy than a few months of playing around on my iOptron. I know, I know, no comparison.
Anyway, if I can get very good accuracy without starting a model or tpoint, then it's an awesome machine.
I'm looking forward to building a model and taking some photos with this mount.