I like the size of the m59, its down closer to the size of the early 580's and such. Would be a handy tractor for sure. I have 2 gripes with them, maybe 3. The cab needs to be wider so you can swivel the seat without getting up. They need an enclosed cab option, that works with and without the backhoe. Price, the are too greedy, like others have stated I can have a full size and a utility tractor for that $$...
As it is my business does well without a backhoe. The midi and the ctl combo work well, not being able to rotate 360 would get me. Although if I did have one, a box blade with hydraulic tilt would be on it a lot...