These two trailers are very different. The Thule (too-lee) has torsion axles, which means generally very little weight is on the tongue. It can be unhooked using the jack to lift it off the ball, but then the jack can be removed to be more easily moved around loaded on the four tires. To turn it loaded, I push down and sideways on the tongue with my foot. It pivots on the front axle and skids the rear tires sideways. The disadvantage torson axles is little travel, and if coming off a bank, say down onto a road, the quad drops first putting all the load on the front axle of the trailer. (This also unloads the rear axle of the quad if there is a full load in the trailer teeter tottering on the trailers forward axle.) The Versatrailer with the walk-beam axle is probably a better set up for hilly terrain, or heavy loads as long as the quad rear axle can carry the tongue load. The Versatrailer also looks to have a longer tongue, a huge advantage in reverse. And there are options, of which there are none with the Thule. I do like the flat deck for many of the things I use it for however.