We've used coach net 3x for the RV (twice in one trip) and once for my wife's car in the past 10 years. They are always professional, will call you back to check on you and to see if you're satisfied.
Our last tow with Coach net they were aware of special towing procedure with my Coach and faxed the instructions to the tow truck operator. He told me he would have had no idea how to tow it without the instructions. He was very thankful for the information.
We also have AAA and have used them with the cars. We did wait 2 hours for a tow, but I don't blame the provider for the wait, they are at the mercy of the tow trucks and what's available.
I'll keep Coach net, they've saved us a bunch of money on tows.
FYI, if they can't find a company who will accept their reimbursement they will tell you to just pay who's the closest to you and they will reimburse you.