There is another recent thread about this model and some of the "drawbacks" that can be seen. First, there are steps to go "anywhere" inside. Climb to the bathroom, climb to the living room, climb down to get a drink. For many, all those steps will become a challenge with any extended living.
As for the pass through storage, to access it, you've got to bend down under the slides to get in. It also looks like the storage doors don't open fully, so the headroom is even shorter than if they opened all the way. Most fifth wheel owners avoid putting anything heavy or bulky in their trailer front storage area because of the need to crawl under the bedroom and avoid the pinbox. On this one, any of the rear storage would be accessed the same way, and it looks like there's a partition between the two areas which would preclude using it for lengthy items like kayaks or similar items.
It will probably fit some lifestyles, but for most people with any "age" behind them, just having steps on both ends would be enough to really question how comfortable it may be.
The other thread is here:
http://www.keystonerv.org/forums/showthread.php?t=19534