I have the HF 2HP unit with the wheels that came with it. The only time that I move it is when I have to empty the bag, which isn't very often, thankfully. When I do move it, it's only a few feet for easier access to the bag.
Everything runs through a shop built separator made from a 50 gallon plastic barrel. I have some fairly long runs of 4" S&D for the main lines with the super flex black hose going to each machine. This unit does everything that I expect of a DC unit for my shop. The ONLY thing that goes into the bag are really fine dust particles. A lot of them and all of the heavier shavings stay in the barrel. One of these days I plan on adding a version of the Phil Thien baffle to the separator to see if that will eliminate even more dust going into the bag. Even without the baffle, the larger, taller barrel seems to serve my needs better than a trash can size separator. I don't know why, maybe it's because if the depth of it. I just know that it works!
The only things lacking are DC for hand held power tools and overhead DC for the table saw. I feel confident that the HF unit will handle that whenever I get around to installing those two missing areas of DC in my shop. The DC for the hand held tools; router, ROS, etc. are on the top of my priority list!
Stephen Edwards
Hilham, TN 38568
"Build for the joy of it!"