I do all the hook-ups myself. It isn't worth the stress (to me) to have someone else try to describe my relative position.
I center the trailer between my mirrors and back-up. When I feel that I'm close, I get out, look at the position and take a rough measurement. If I have about a foot to go, I back a foot and check again. I can guarantee you that it takes only 2-3 times of looking myself to get the tongue lined up. Total time....getting out, looking, getting back in and backing......1 - 2 minutes....
TOPS.
I couldn't find the price of this coupler system but I'm thinking in the range of $400 by the time it's installed. Now @ 2 minutes per hook-up, I could do 30 hook-ups an hour. @ $400 I could pay myself $100 per hour to do 120 hook-ups. If I make 10 trips a year, that's 5 years worth of camping paying myself $100 per hour for lining up my trailer by myself.
Cost of camera system $150 (including time to install). That's 40 hook-ups @ $75 per hour or 120 hook-ups @ $25 per hour. Still not a bad deal.
Some of the gimmicks that they put on the market have got to be put into perspective at some point.......this one is a no brainer. The camera.....well.....that's sort of a fun toy. that's gotta "Fun Factor".
If we were talking about a trailer that has 600# of tongue weight and no wheel, that might be a slightly different story (however, not much different). The TMs have a wheel and can be moved by most of us with relative ease. Now....having said that, I'm in my 60s and I can see that in another 10 years, I may not want to be pushing and pulling the trailer around as much as I do now. That's all the more reason to keep practicing lining up the trailer by eye and perfecting my skill
All I've gotta say is, "Some of you have to get out camping more"....