Our 23U, The Bettye is our first RV. My wife, Debbie drives it often. And she's very confident with it. She has been doing all of the set up & take down: site choice, leveling jacks, power and water, awning and patio set up and securing everything.
The 23U has no slides, but I think this may be an advantage, especially for someone new to RV's. It is smaller and there is less to go wrong and/or maintain. Does have a lot of storage though. And if you and your Son pack well, there should be no issues. We just did a 4 day weekend with 4 adults and a dog. There really is plenty of room and we have the small table for the patio.
We also have a scooter hitch and bring the scooter for short trips and adventures. It rides so well and is so stable, you never know it's there. We can use the scooter hitch as a bike rack or additional storage: coolers etc.
We are planning a Western Mountain Trip next year and the 23U will fit into many of the smaller roads we are planning on visiting: Needles Highway, Rocky Mountain National Park etc.
So, we wish you the best of luck and have fun on all your adventures!