I had the Carbide cutter out on Sunday spent approx 3 hours cutting brush and small trees. I had a grove of I would say 100 3 to 4 inch dia trees on the side of a marsh area that I wanted to remove. It took me approx 1 hour to get up to speed on the proper procedures to attack the trees. I will say the loftness unit does a nice job cutting the tree down and then pushing it over to the ground and then mulching it up. the mulching takes the longest to get proficient at, getting the right angle of attack on the cutter head and then back dragging it over the trees. I will say in a very short time they were all down and mulched and I was looking at my next target. I did hit a few stones and the unit just cut grooves into them. I will say this is the best time of year to do this type of work as you can see in most cases what is in front of you, once the leaves start popping it will be alot slower going thru the brush at least for me. I will try and get some pictures next time out.