Been considering a Navion at some point (we have a new, big dog, could use more space) and always liked the idea of that queen. But changed my thinking to the fixed twin beds recently. We looked at a video of how the bed has to fold when the slide is in.
The idea of leaving the twins made up all the time much more appealing. One less slide, too, less weight. Saw a new one friends bought and it's beautiful, gets great mpg.