Couple of things I've thought of, that you'll be able to help readers out with, due to the benefits of a long-term test;
5s have a reputation for going through tyres, especially at the back. You could let us know if there's anything out of the ordinary about how quickly you get through them.
Squeaks and rattles; mine's been good, but some people complain about squeaks in the 5, especially around the sliding doors (as with any minivan).
Just cleaned my 2010 this morning; impressed with how the interior's holding up, actually better than my wife's 09 Sentra SE-R, despite being the vehicle for the dog, holidays etc.
Are you going to get to do a back to back for a week or more with the Chevrolet Orlando? That could be interesting.