Daniel, whilst I agree that innovative design and functionality are a good thing to strive for, unfortunately Stealth has failed.
I wonder if you have actually seen one in the flesh, or are just going by the adverts?
I looked over the show model at the NEC in October and one would think that the makers would pull out all the stops to show an exceptional van, which is what all the adverts lead you to believe.
I was disappointed, not only by the finish of thevan on show, but also the heavy handed attitude of the "sales staff" who were downright aggressive and rude to some folk.
To get an idea of how well finished the Stealth is have a look here: http://www.touringandtenting.com/forums/index.php?showtopic=35896&st=45
near the end of page 4.