I have had CoachNet for a couple of years. I've called them twice, with great results. I would recommend them unequivocally.
My most important advice, though, from either service, would be to be sure you get their higher or highest level of service, where the word "unlimited" applies to everything. The last thing you need in extremis is some scorekeeper telling you you're not covered because this is the second time you've overheated, or the second blowout this year. That $50 bucks you saved won't look so good then.
John & Diane, Fulltimers. RVM103 NHSO
On the road since June '12 with Lincoln, the guard cat.
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element