I forgot you were a newby. Have you considered asking the dealer to let you drive around their lot on each to get a feel for them? I know that's going to make you want to buy the HST, but I also know that if you got the shuttle shift version you would get better with it overtime, and the difference between ease of driving would get smaller for you. Another reason I wanted HST was to get my spouse to drive the tractor some. She would occasionally drive the old tractor, but she was very uncomfortable doing so...This aligns perfectly with my own thinking.
The smaller HST MX machine will be easier to drive (remember, I am a newbie), easier to maneuver, easier to deal with on hills (and I have plenty of those, once I am experienced enough to try them).
The larger M machine will be heavier, more stable, and more capable both in terms of the FEL and the BH. And also quite a bit more expensive...
And funny enough, the MX actually has more PTO HP than the M62 - although both are in the 60HP range which is probably enough for all of my PTO needs.
Anyone else want to weigh in, perhaps with real life experiences using the M59 or M62 for 3 point work after removing the hoe?
FarmFreshKS