Like BIll. I started with them when I had a PUP (Which I bought direct from the prior owner) and needed stuff, Back then it was a little store (General Trailer) in, as I recall Ferndale, MI. (north side of 8Mile Rd).
Bought my Class A from them like 30 years later. Still go to them for some stuff.
Service.. Well.. I have a few complaints, but they are minor. Mostly they have to do with Dometic 'Fridge and the drip tube. Read the owner's manual if you get a rig with Dometic fridge. Not a bit thing but ..
IF your RV comes with a Norcold, this problem can not exist.