I know the Cougar models are not the same as the Montana; but it is still a Keystone product. My biggest complaint is the customer service my decals on the 2010 318SAB are a POS to say the least. The decals started peeling after three years of ownership. I did not expect Keystone to warranty them or pay for the replacement but at least to provide a source of supply. Guess what no answer at all.
There is a Montana Forum and there is a Keystone Forum on the web where you can check them out also.
So when we looked for a replacement I did not even consider a Keystone product. We looked at Heartland, JAYCO, Forest River, Evergreen RV's, and Grand Design RV's.
We ended up purchasing a Forest River Cedar Creek 34RL which fits our needs will. Also it seems that Forest River does have a present on the Forest River Form and holds rally's for owner's of Forest River products to attend in Elkhart IN yearly.
Jim & Jill
Sold: 2010 318SAB Cougar:New: 2016 Cedar Creek 34RL. 2008 Dodge 6.7LCummins the original 6.7L engine, w/68RFE Auto