We have that coach, purchased in 2013 with 31,000 miles. We have the 425HP Cummins ISL which was an upgrade.
We love the coach. It is sturdily built, quiet, drives and handles like a dream. Nicely equipped. The prior owner did the wet PTO upgrade and replaced the EGR valve on the engine. As with all motorhomes, we've had to fix a few things but most were not related to anything Country Coach did or did not do. We've been to Junction City, OR twice to visit the former CC facility for service and fixes, most recently this past September. As noted, it is now owned by Winnebago.
We have put 37,000 miles on it since purchase and have done two cross country trips. It is just a really nice coach. If I had any criticism of the coach it would be even more of a joy to drive if it had one of the big block engines like the Cummins ISM. CC builds a sturdy (and heavy) coach and the ISL is fine, but a bit more power would be just icing on the cake.
Radiators were suspect in those years and can develop leaks. Ours is one of the 'suspect' radiators but we've not had issues yet. CC did use an improved design radiator in the mid 2007 model year. You can call Greg Bootes at Winnebago/CC, and with your coach serial # he can tell you if you have one of the improved radiators.
2019 Grand Design Solitude 384GK 5th wheel. Glen Allen, VA