Bought one myself some months ago and as it sat, was extremely useful.
With my TC18 (no FEL) was able to move around cut trees, and some very large limestone rocks.
Sometimes the larger rocks would have to connect at the halfway point and still touched the ground to keep the front wheels on the ground.
Recently I added a 2000 Lb winch to it. Using some hook pulleys (sides open up) to route the cable, It has been even more useful. The winch has the power to slide the tractor (with the boom lowered) if the load is too great. Even at that, I have been able to pull cut brush out instead of moving it manually. Now with the addition of log hook, I even move an entire tree that was just cut down (No Trimming) to a better location to remove the limbs and save the log. Also used the winch to move rocks from the hillside cut (for the house foundation) from above.