we have the serenity yr 2007 just been the best we ever had, there tops in quality, handles great, drive it from ohio to arizona almost every year, don,t worry about service they rarly break down and general service can be found for oil filter . handles the mountains with ease, we are two people just traveling from spot to spot, my wife can tell you every cracker barrel from ohio to arizona ,often over night there. with duel wheels you don,t notice the 18teen wheels as much as a single axle. ours has the 5cyc diesel engine 20 mpg is the norm,where the V6 is in the 15mpg range. resell is better than most , yep they cost a bit more but there not junk.