Negative responses are not well received as you have seen in these responses as everyone wants to hold the value of their RV as high as possible for resale. I had a 2010 Montana 38SSA and it was enjoyable. However these units are "TOO " heavy for the suspension and tires they ride on . I bent one set of axles in 15,000 miles and the 2nd set going through Kentucky to Mor/yde for and upgrade of IS suspension and Disc Brakes. These are two absolutely necessary features . They also absolutely need G614 Good year tires. Keystone is too arrogant to even offer as options when asked if available should I decide to upgrade to a Big Sky. Their response was buy it and take it to Mor/yde and change it yourself.
I went to the RV show in Tampa and the new Montana's are even heavier because of the automatic leveling system and they are still setting it on 6700 lb. axles. Wet bolt kits are a nice upgrade but the bushings are too small and thin. You need IS suspension. Been there Done that Good Luck on your decision.