I travel with four small dogs, so I have some understanding of your needs. Given your concerns about the dogs being under foot, I would suggest that you look at the Flagstaff 23FBS. That slide gives you a lot more room if you have dogs and, I supect, the price might not be too much more. Can't quite understand how you made out at all with the Casita. That must have been cozy, to say the least.
Happy Camping! ///// Richard D.
2006 4x4 Ford 250 SD / 2007 Flagstaff 827 FLS
One very patient wife and one furry child who travels with us. Forty-two years of trailering and camping, and I still have a blast.