We had a 2005 27' Coach House for five years and enjoyed it, but IMHO the quality did not justify the high price. In particular we found the interior finishing detail to be just average; for example, all the "wood grain" was laminate. The front entertainment cabinet sort of collapsed; we didn't expect that type of experience with a MH priced >$150k.
One drawback to the Coach House single piece design is that it is very short on exterior storage. We had to add a hitch-receiver mounted storage box in order to comfortably store our outdoor tables and chairs.
Another issue is that the available cargo load (CCC) was very small; I'm pretty sure we probably drove it overloaded quite a bit of the time. All-in-all I wish we had considered a small Class A rather than the CH.