Im going to assume you are talking about the 6 cylinder BluTec used in the Sprinter chassis. I had a 2017 rig for two years. Went through a few recalls and did the oil changes myself. Here are my thoughts on the Sprinter: pretty economical as people are getting 15 mpg with them (not towing). You can tow up to a 4200 toad, if I recall correctly. Some units have a visible DEF indicator, others don't, so really have to watch DEF levels. Handles very well, uses either a propane or diesel generator, generally 2500 watts. Easy to park and move round in parking lots (think full size pickup truck). Now, the downsides: maintenance costs are very high due to it being Mercedes. Parts costs are quite high. If you have a breakdown, or problems on the road, very few places can or will work on them, as (if under warranty) only authorized dealers are allowed to do so. Lots of dealers sell the rig, but few work on them (chassis). The unit has a very low CCCC, 11,030 pounds. That basically means the if you are towing, you can carry a 6 pack and 2 changes of underwear. Seriously though, you really have to be aware of your weight with these. We ended up going to a class A because this was just too small for me - bigger guy.