Our 19' Tamarack has a small under the bed storage area (rest is water tanks, etc.) but also has pass-thru in the front under the front of the TT. Tamarack doesn't make this model anymore, but am sure they have one similar. We had to secure the wheel fenders as first few times out they vibrated off, so Grandson helped us put a support under the new fenders.
But for us two (no pets) other than specifically getting one without slides, no oven, but wanting a full-sized bathroom, this unit without a slide makes for a perfect "weekender" for us.
But definitely if choosing this size for full timing would get one with a slide (even if soloing)as we have been out for a cross-country trip almost 3-months, and a slide would have been nice when we stayed in one place for 3-4 days at a time. And an oven, didn't realize how much would miss the oven feature.