Not a van we would be interested in, but good to see some innovation on layouts, at first I wondered why the walk through bathroom had the sink in the middle, but once you see the tv mount on the back which is in middle of bottom of bed it makes sense. As for the cupboards either side of bed, great idea, gives a space for book or phone underneath and maximizes storage above.
Like Barry my first thought was "they look heavy" and sure enough on the RollerTeam website there is a 4.4t option on the two largest vans, but AFAIK that should be standard, it would be very difficult to run them at 3.5t.