Most all Advanced RVs have VB Air Suspension. Mine is four years old. ARV installs on other manufacturer's models for Sprinter owners when possible. They were the first. I know Airstream has VB Air Suspension now.
If you have passengers that ride in the back on sofa/bed setups it takes the bounce out of the ride.
2015 Advanced RV Ocean One Mercedes Benz Sprinter
Previous Class Bs:
2011 Great West Van Legend Sprinter
2005 Pleasure-way Plateau TS Sprinter