Alfa may have changed significantly since we bought our 28ft. Toyhouse, but we had the frame crack when parked at a grocery store in Colorado. We were loading up on supplies before we went out to Taylor Park. Upon investigation, it was apparent that Alfa cut part of the frame rails to install the fresh water tank. This probably weakened the structure by 30-50%. If this happened while traversing one of the passes, it could have been deadly.
Yes, this was over ten years ago, but the absolute stupidity of Alfa in doing this continues to amaze me. Buyer beware.