Actually, they work well, and are easy to use. I had a Exspando van for my Shop Office in a Maintenance Company. It was also the alternate C.P. So it was stuffed full of all kinds of things concerning the DS repair operation, that was our sole job. Then the 5-6 radios and C.P. operations for the Company. I allotted one guy, my NCOIC to help me in the job of setting the whole thing up. He drove, I rode shotgun. He stopped long enough to let me disconnect the trailer mounted 15 KW gen set, then I grabbed the power cable that is located on the rear right side of the truck and he drove until the cable dropped off the reel. Then he backed up 6-7 feet and parked. I drove the ground rod, started the gen set and hooked up the cable. My NCOIC and I had the van grounded, leveled, sides cranked out and the floor and roof panels opened and sides cranked out. Then I hooked up the cable to the van. We were operational. Could not have taken more than 15-20 min at max. Oh, then the first thing my NCOIC did was plug in the coffee pot! Got to have your priorities.