With the idea that the details are where we are prone to getting caught, I might throw in more detail on some of those details that gave me trouble.
I first used the RVI brake ina 98 Escort with manual transmission. I had the car and converted it to tow and it was easy. Put the car in neutral, ignition to first click to keep the wheels from locking on cornering, connect the RVI box to 12V power outlet in car and the small wire to the breakaway connection and place the "claw" on the brake pedal.
Then there is a button to push which tests the setup and does a push of the pedal to test the box is placed so it doesn't slide instead of pushing the brake! Many cars have a ridge just under the seat front that the box set against, no big thing. The box has a speaker which walks you through the testing and tells you if it fails or not. Two wires to plug in and you "could" miss it?
In the RV is a tablet that comes with the system and it shows what is needed to get wireless contact with the car unit and when it is braking, etc.
A sending unit/ repeater can be set half way forward in the RV if there is a signal problem. We did not need it in the 30 foot and under we had.
On setup at the car and turning the tablet on to connect, then we had a routine of checking lights with my wife at the rear to check turn,stop, taillights and then as a final, I pushed the test button as she listened or watched the tow car brake pedal.
This was all very simple and easy as a small added thing to get road-ready. She did the car and I pulled in slides and jacks or stored things until ready to check it and then we did hand signals out the window.
But then we changed cars and did not have an RV at that point, so did not buy for towing and created big problems as we got a car with much more electronics and one of those was an electronic transmission! I think 2015 or so Ford Focus? BIG mistake!
On that car the whole wiring scheme was difficult as well as mounting the tow plates.
The transmission had to have power cut to set it to tow but there had to be power to the box and the lights, making it weird with lots of added wires!
I suggest looking very carefully when considering WHICH car to tow as they can be very different, down to how many wires to run where!
Automatic and CVT are not a good pace to start. Jeep seems easier but then you are agreeing to ride in a JEEP, so there are many things to consider!
Like the whole camping thing, there are lots of different levels to sort which best suits YOU.
What suits the rest of us is not really important for what you want???