Greetings & Welcome!
It can be a great life and lifestyle. I became a full timer right out of high school, working as a traveling construction worker. Now, at the age of 75, I’m still enjoying the lifestyle.
For two people, I would suggest a Class C. A Class B will feel terribly cramped. For me, besides a good kitchen & bathroom, is a permanent bed(s) that won’t need set-up every night, and an extremely comfortable place to sit all day long. There are always days of foul weather, where you’ll just want to hang out inside all day long. On those days, comfortable seating for all is a real blessing.
I would definitely suggest trying it out before going all in. This lifestyle isn’t for everyone, and if you’re not both all in, it will likely not be very enjoyable.
While many like to brag about free camping, most of those places are pretty unenjoyable to most people. They’re extremely remote, and over terrible roads. The better places have pay campgrounds.
Check out the “America The Beautiful” passes, they can save you a lot of money. KOA and others have campgrounds around the country as well.
"Life can be so wonderful if you just give it a chance." ~ The Camper Van Man