It's great, and what's not to love if you're a POSIX guy? The Ctrl and Caps Lock keys are swapped, so the Ctrl key is on the home row like God intended. It has buckling spring, positive keyclick action and it's so good if you do a lot of keyboard input or use Vim and/or Emacs. The bottom plate is steel and it's heavy, it won't slide around on my desk.
Sure, for custom mechanical keyboard snobs, the keycaps aren't anything to write home about because sometimes the key characters aren't properly centered on the key surface. But my keycaps look OK, maybe I just happened to get a good one. And it doesn't bother me anyway because I never look at the keys when typing.
Kind of wish I'd started with a keyboard that had the ctrl where the caps lock is... I can see the appeal. One thing I've found from some bad keyboards is I really favor the left ctrl and the right shift, when either of those are out of position it's truly a painful experience for me (notably on many laptops).
The Type M is the original IBM PC keyboard even better than the type F AT keyboards.