I did not read all the responses so this may be a repeat.
I've had no use for brand manufacturers warranty, I have no dealers for the trailers I've chosen close to home. I have used mobile tech a few times for warranty repairs on OEM items, like the fridge or A/C units. Costs me an extra $60 to have the mobile guy do the job, above what he gets from Dometic or what have you.
I have had periods where I have to wait a week in a half for him to show up due to seasonal busy schedule. He has many many jobs closing and opening trailers at more or less local campgrounds.
On the plus side, my trailer stays at my house while it waits and gets worked on as opposed to sitting in a dealers lot for who knows how long. I believe thay are more likely to fix things quickly and correctly as they're the ones who get the repeat phone calls. They have much more on the line then a mechanic at a dealer.
I have Roadside Service, only needed it once in 14 years but was glad I had it on that busy, rainy, very dark, highway 2 years ago. Knowing I only had to dial one number and wait a bit was worth my investment. I use Good Sam and had a great experience, the one time I used it.
