FWIW, my '04 Komfort has been nearly trouble-free. A nagging small water leak on the inlet to the toilet. The clamp will loosen over time causing a drip; NBD. One kitchen cabinet door tends to sag and I =should= have put a couple angle brackets on the outer corners a long time ago, but I never have. Had a water leak on the slide during a heavy wind/rain storm. Strip of 1/2" weather stripping on the inside edge of the wall fixed that. For a mid-level rig, it's very heavily built. I certainly hope my next one will be as trouble-free.
Lyle