After a few days of sitting inside watching it rain, that 17' would get pretty small to me. Also, I simply don't care for their bathroom arrangement at all.
I bought a 21' tandem axle trailer that I'm so pleased with. It has it's own bathroom with a large walk in shower and ample room in the rest. I bought my trailer at two years old for half of what a Casita costs.
Camping since 1960