Nice looking machine. I'm a little on a Briggs 23.5 but it will do it. I'd prefer a Honda myself. Great machine for residential, light commercial and tiles as well. Most cleaners don't need anything more powerful than that. Maintenance seems pretty simple. I would prefer a 100 gallon waste tank. That's what I have in my Astro Van with the old CDS and it sure comes in handy with larger or heavily soiled jobs. Will easily fit in a half ton van without the fresh tank.
If n I was younger and doing residential, I'd be interested in that. I'm not, so I'll keep hacking out the Matt way on a little smaller version and ride off into the sunset.
But big improvement on the heat exchanger. Maybe it will help the Briggs last longer with the better breathing. It only took them over a decade to figure that out.