To be completely honest I haven't even had a chance to really put the tractor through its paces yet. It took WAAAAAYYY too long for the dealership to deliver the machine (ordered from the factory, took a couple weeks to arrive at dealer, then several more weeks waiting for dealer setup [installing loader, mounting and loading tires, etc.], THEN a few more weeks waiting for delivery... it ended up being over two months from when I placed the order to when I received my tractor.
Then, a few days after the machine was delivered, I noticed an oil puddle on my garage floor at the left front wheel... turns out the outer wheel hub seal came damaged or improperly installed from the factory and needed to be replaced (the dealer didn't give me any hassle about it, knowing the machine was only a few days old, and came and picked it up, did the service work and dropped it back off).
With all of that, I've only actually had the tractor for a couple of weeks, and I've been out of the state traveling for most of that time.
I did, just playing around a bit, move around a bit of fill from a very old and overgrown fill pile, and spun the (loaded) wheels when the bucket hit a large root. So horsepower wasn't the issue there, but weight: the machine was spinning all four wheels (I had the differential locked) trying to push the bucket lip through the root. I'm running loaded R4 tires, so maybe that's the kind of thing that Ag tires would help a bit with, or maybe I just need more
ballast (or to not try to use the bucket to break through large roots!
)
I'll certainly post more after I've had a chance to use the tractor for a bit!