I'm a C-er now not a B-er.

I had an Intervec Fiesta 17 built on the Chevy chassis w/ 305. I think it was nearly identical to the Horizon. It was my first RV. Even though I often camp alone, it just wasn't enough room. Bathing was issue, had to sit in tiny tub. No work desk. Nicely built little RV though. Then I went overboard to a trailer and F250 which was a bit more than I needed for a night or two away from home.

The 24' class C has been the closest to perfect compromise. If it wears out before I do, I'd probably get another.