Greetings from another A.C.E. 30.1 owner!
I think you'll find that a motorhome won't be that much different than your 25' TT. We had a 26' Starcraft before getting the motorhome, and the only big difference was that we weren't pulling anything (for the time being), and learning how to "point" the rig down the road & keep it centered in the lane was the biggest challenge. But after a couple of trips (AND installing a steering stabilizer!) we were pros at it. Apart from the generator, all of the other systems are pretty much the same.
I think you're going to find it's just a whole lot of fun being able to raid the fridge when stopped at a light, or using the bathroom doesn't necessarily mean finding a place to pull over -- unless you're the driver. But you get my gist ...
Welcome, and enjoy planning your first trips!