Yes, 4 down is easier but a dolly is not as bad as those above say.
I’ve used my Demco Karkaddy SS for 9.5 years and 51,000 miles.
1. Loading and unloading time takes about 5 minutes longer than 4 down.
2. After a little practice you can do it by yourself without much problem.
3. At 75 it is getting a little harder to move it around but still doable and with a trailer dolly even easier.
4. 99% of the time it can be stored with the tongue down under the rear of the MH.
5. As my knees get older it’s getting a little harder to get down & up to fasten the straps and chains but I use a piece of plastic to kneel on and it is still doable.
6. After I figured out how to strap the toad down (not the way the Mfg. recommends) I’ve NEVER had a problem with a loose strap.
If you’re in good health & patient during the learning curve you’ll get along fine with a dolly.
Dave
PS I too recommend the Demco Karkaddy SS dolly. It may cost a little more but it is so well built, will never rust and can be folded to home store in half its traveling length.