The Rev is like the Winnebago Trend/Itasca Viva.
Here in the US, the ProMaster chassis has the smallest weight capacity of the newer van chassis, and only offered in front wheel drive. However, the chassis is the cheapest of the new Euro-van offerings, so it tends to get picked for that reason. So, things wind up being skimped or left out.
Windows for one. There are not many windows on these ProMaster class "C"s, so if you want to see a sunset, you will need to face the vehicle to find a way to see it.
Slide-outs are another feature. You will not see a US maker offering those, although they are common in other rigs. Instead, the use of drop-down beds is more common for a denser sleeping arrangement.
At first, I liked the idea of the Euro-Van on the PM/Ducato platform... but it doesn't translate well to the US. People either pay for the tried and true (although relatively low MPG) of a Ford E-350/E-450 chassis, or pay the price premium for the Sprinter chassis. The PM chassis is wedged in that no-man's land between the two, with the fact that it has a weak payload rating compared to the competition.
Things will improve, but as of now, the PM based "C"s are sort of odd birds right now. Once FCA starts getting better payload ratings and rigs like the Trend start getting slide-outs, those will be a mainstream choice, but right now, they really only have the Euro-styling as their main sale point.