Just finished assembling an X20 Trailer Vac and using it. At first I was skeptical due to the fact it was a trailer when I was used to mounted units. The engine stay assembly is ingenious to say the least, it really works. There is no sacrifice in maneuverability for the tractor, the only thing to watch is trailer tracking on outside turns. The price point is excellent and build quality is the best, built to last right down to the use of greaseable heavy needle bearings used in the wheels ( most other trailer of this size use nylon bushings) and withstand the demands I place on it. I really like the steep dump angle so it dumps completely. I underestimated the capacity, kept checking to see if it was ever going to get full. Can't wait to see how it does on leaf cleanup.