I now have 52 hours on my Bobcat CT235 and love it. It seems to have plenty of power. I recently helped my neighbor put in a circular driveway and a lot of the dirt in our area is Caleche Rock, which is very hard when dry.
I had very little problem digging this with my front end loader to use as fill for his driveway. I purchased my tractor with a front end loader and box blade. Both work very well and the tractors weight (a little over 3,000 lbs) gives it plenty of traction.
I just did the 50hr. maintenance and did not have any problem with that, although I had to purchase a roll around pan with hand pump to drain the 8 gallons of hydraulic/differential fluid in.
I am in the process of clearing sage brush off of my 1-1/2 acres and leveling it as it is mostly on a gentle sloping hillside. I also plan to buy a backhoe attachment next spring. A friend gave me a 14" single plow for it and I'm hoping the tractor can handle it! I need to level an area for a garden next spring to give it a try.