We also went from a MH to our current 'fiver', bigdaddy..... couldn't be happier....
We had a 5th wheel we had traveled in for a few weeks at a time before we retired and then lived in it for about 8 months when we moved and had a home built.
Then we bought a class A as we started to travel for longer time periods (3 to 5 months at a time).
Now we've gone back to a 5th wheel and still travel for long periods of time (up to 6 months in the summer) as well as take a lot of short trips.
We are really happy we went back to a fifth wheel. The much better driving experience in a vehicle meant to be driven and used primarily as a passenger vehicle as well as the experience of walking into a home-like "camper" versus walking in and out of a 'cockpit' to get to the living area makes us both happy.
I'll bet you enjoy the new 'fiver' and that you'll love driving that truck.
Welcome to the GD "family'.
2018 F350 CC, SB
2019 Grand Design Solitude 310GKR