Do we have any recourse?

I'm not sure we've had bad service. They have been very accommodating. According to what they've told us, the mfr's rep has told them that the shower doors and windows are very poorly designed. They have installed three sets of windows and all seem to be defective from the plant. The service guy we've worked with has been quite helpful. I have no idea what kind of reputation the dealership has, but they seem to be working pretty closely with the rep on our mess. I wouldn't go directly to Forest River without telling the dealer I was doing so. That just seems like a courtesy.