I purchased one this week. 8 seat passenger version for my personal use 8 - 10 k miles yearly. Ours is almost fully optioned with ~$4 k in extras and we paid around $41k. I chose the MB for the commercial aspects, no power doors, the ability to tow and payload of around a ton.
The amount of room on the inside is amazing compared to the other minivans. We sold our 10' VW Routan. The footprint of the Metris is almost identical to the Croutan. The ability to carry 4 kids (3 in car seats) and 4 adults comfortably is impressive for the exterior dimensions.
I briefly looked at Honda and Toyota, there was no comparison in size, for more money, similarly equipped.
Very happy with the driving characteristics as well. My wife has orthopedic issues and isn't in pain after an hour of driving it. It handles well and doesn't wallow around like the Croutan.