We dumped our 2020 3950BH after a little more than 1 season of use due to myriads of issues Grand Design could not resolve, the largest ones having to do with the frame and running gear. It was not a great experience as we had with our previous Grand Design built the 2nd year they were in business, and the stellar customer service Grand Design had prior to Winnie coming along is no longer Grand. Just another mass produced brand loaded with Lippert garbage on a Lippert frame, nothing special. Furthermore I would not buy anything Grand Design or anyone else built since Covid came along. What I see on dealers lots are loaded with build quality Issues. If I had a 2015 I would keep it unless it was loaded with issues.