I am on my second Master Tow. The first one I bought used for $925 around 2009, sold it in 2022 for $850. I put somewhere around 50K miles or more on that dolly. The only reason I sold it was because it didn't have brakes and we were going cross-country and I wanted one with surge brakes, which are the more expensive braking option over electric brakes on any dolly. No brake controller in the RV is needed, when the tow vehicle brakes, the dolly brakes.
I like the Master Tow HD80 which is wider than the 77 model, for many of the reasons Ex-Calif pointed out (I looked at Stehls) but with plastic fenders and attached loading ramps the MT is a little lighter and easier to move around my drive, or more so when arriving at a campground. It also comes with excellent 14" Goodyear Endurance S/T tires. With the tilt bed, you pull a pin under the dolly, drop the ramps, pull your vehicle onto the dolly, lock the steering wheel, and set the parking brake (which you will release after the tire straps are attached and the vehicle is secure on the dolly), replace tilt pin, attached tire straps (really fast and easy) and your ready to go. Of course, first, you have to have the dolly attached to your RV and the simple 4-pin lighting connector attached to the outlet on the rear of your rig and safety chains. When we arrive at a campground we will find a spot near the entrance to pull over and offload the car. Then I will detach the light plug, chains, and surge brake safety cable so when I get to the campsite I can jump out of the rig and quickly move the dolly from the rig to a parking spot at the site. This way I'm not blocking and tying up the road. I have seen some RV'ers with dollies and detachable ramps have to pull out cardboard or something and crawl under their car on the dolly to attach the ramps and remove safety chains and cumbersome tire strap setups.
In May 2022 I paid $2295 for my Master Tow brand new.