I would get the MasterTow.
I have the clone to it ( StehlTow ) and in 25,000 miles, I haven't had an issue.
I like the larger, 14" trailer tires, avalable everywhere. Although mine still look new, if one failed I could pick up a new one, wheel and all, almost anywhere.
My cars steering does not lock and I don't do anything to tie it up. It tows straight behind me like it isn't even there. I prefer that the cars front wheels can turn, when I need to make sharp turns, well over 90 degrees. ( Acme says not to ).
When I'm U turning out of a gas station the turntable can only swivel so far. Once it hits the stops the front tires steer the rest of the way. Once I'm on the straight and narrow everything lines right back up.
With the built in ramps, I un-do the straps and safety cables, pull the tilt pin and back off.
To move the dolly on the ground I installed a caster wheel near the hitch. I don't think the dolly weighing an extra 100 lbs makes much difference moving something with wheels. Besides, the extra weight is behind the wheels, so it balances out. I don't carry it around. The DW and I each push on a fender to move it around.
When loading, I pull up the solid mounted ramps, never worrying that they may move, slip or be in the wrong spot, until the tilt comes level. Put in the tilt lock pin, strap the wheels down and clip the safety cables thru the wheels. My knees never touch the ground, hooking safety chains or gathering up dirty ramps from under the car, for storage somplace.
You may prefer electric brakes but surge disk brakes are simple and trouble free. No controller, no heavy current thru the wires and connector and no adjustment. As the hitch pushs against the ball, the brakes gradually apply until it doesn't push against the ball. Its all self controlling.
As far a backing, your not going to do much backing anyway, with the car loaded. With it empty, I can back it some, but if uphill or on soft ground, the wheels slide. There is a hole to put a pin in to disable the surge brakes.