We flew on the Challenger several weeks ago, and we were satisfied. It was very comfortable and open in the cabin, and the cockpit was nicely laid out--no overhead panel/switches. Too bad it doesn't have autothrottle. Good sized cargo area completely accessible from the cabin. The passenger seats (except for the rear club seats on the right side due to emerg. exit) have a nice range of adjustability.

Now just looking for the right deal.