Congrats on your 3400RL. We picked ours up in August and went on our first trip to Pahrump, Nev. over Labor Day weekend. It's a wonderful RV and so far only a few very minor problems that should be easily corrected. Just remember not to open the bedroom slide while the cargo door is up.... ask us how we know!!
I'm not sure if we have dual pane windows but it does have the Arctic package. Also have the fireplace, central vac. and the convection microwave and gas oven. The central vac. works great and even reached into the bedroom! We didn't have a chance to try the convection oven because we ate out at the casinos for most meals.
We met several very nice Montana owners who had never hear of MOC so I gave out the website and we may have some new members soon.
It's great to belong to such a great group of folks!
Happy RVing
