Congratulations on your new 5th wheel. We also bought the 3685FL and traded in our motor home. We will be taking ours out this weekend for the first time. Biggest worry we have is hubby backing up. Can't seem to find mirrors that will fit our truck so he can see better. I love the spaceous feeling we have when we are in it. With a 119 pound German shepard we needed more room. Plus we take along the house when we travel