Had one with no brakes (cheapy) get some sort of brakes! Enough said about that from a green RV rookie who didn't know better when the bought it. Nylon straps with stretch as they age with use. Drive a few miles and re-tighten. Pulling an empty dolly is quite a show on a bumpy road. Center pivot will continue to pivot until something stops it. In our case it was the Toyota that was off center on the ramps (another no-no)
When you get to your destination. Figure out where to put the dolly before you pull into your site. Slide the tongue under the rig if there is enough room for the center plate and axel behind the rig that doesn't block the road worked for us.
We figured out that we should buy a Jeep or another auto that can be flat towed would cost more, but easier to deal with in the long run.
Have fun no matter what!