I bought a Bobcat 753 a few years ago, thinking the same thing. Tight quarter mowing, grading, loader work. Gotta be better than my 21 hp gear drive tractor. It is. But its not without limitations. The 'cat is much more unstable on hills. Gets stuck easily. Pushing and digging are limited by weight and traction, which is marginal. Destroys grass. Side slope stability is a little scary. Up/downslope is even more scary, as it needs a load in the bucket to be able to travel up a slope. I've nearly "turtled" it a few times.
I thought it was a better and cheaper option than buying a 40+ Hp HST tractor. I think for my uses, the bigger tractor would be better.
On a jobsite this past winter I used our Cat 277 track (the wide all-terrain tracks) machine for snow plowing. It was amazing how stable it is. Obviously the power and weight was a major improvement as well as pilot controls, but the tracks make it so much easier to grade and handle slopes. So much so that I will look into a Loegring set of tracks for my 753.