RV Mechanic is kind of in line with RV Consumer Group...Four Winds Thor in pretty much average...not horrible, but not top of the line. The ratings of RV Mechanic didn't really surprise me. And those ratings are FREE...you have to pay big bucks to get the info you want from RV Consumer Group.
One thing I've noticed with most ratings is that you can get people to complain about the lemons they bought more than the people happy with their purchase...JMHO. The happy ones are too busy enjoying their purchase I guess???