I've got about 3.5 hours on mine. I don't know that mine has a parking brake, it's HST, so it just kinda.. doesn't move when it's off. This is the first tractor I've owned, only the second one I've driven (the other was a MF scut at the dealer where I bought my mahindra). very easy to opperate so far, except for the backhoe. I've struggled with that, but I got my first stump this afternoon! I suspect an axe and a helper would make that process go *much* faster, but it was entirely too much fun. I used the bucket to smooth the dirt back out after the fact.
I think I'll fab a thumb up soon, I can already tell I'll be moving and dragging stuff around with the hoe.