Well, I spent a lot of time researching what I thought would work best for me, including cost, safety, ease of use, and so forth. I finally decide on the Acme Tow Dolly. It is shipped completely assembled, has surge activated disc brakes, LED lights, and has a recently redesigned restraint system for the wheels and a new 'sure-grip' ramp system. Additionally, the dolly is easy to maneuver and will fit under the back of the RV at the campsite. It can also be stored vertically in a garage or storage area. I have been very pleased thus far. Of course, everyone will have their own opinion---it might be similar to what flavor of ice cream one prefers. However, for me this was a good choice based on my needs and determined after a lot of time reviewing posts, asking technical questions from some of my engineer friends, and examining the various options.