When I bought my motorhome I took it out the first weekend and wrote up everything wrong. I then took it back to the dealer and it spent well over a month there while they goofed off and stalled and delayed. I went to pick it up two times and both times I found things on the list they had not fixed. I was pissed off!
I understand that a motorhome is a complicated system and things will go wrong, but my issues were all with the service people basically not caring and not doing their jobs. They had my money and they didn't care how long it took to fix it. Sounds like they are bending over backwards to help you fix your problem. I can be very forgiving in a case where they are doing everything they can to fix the problem.