We have used a Casita
16 for a year and a Scamp
16 for 3 years. We liked them both and felt they were each quality trailers. The reality of the story is that both companies used to be located literally on adjoining properties in Backus, MN and owned by brothers and not surprisingly they are very similar.
We choose the Scamp
16 because it is taller inside and feels more open because the Scamp's side bathroom allows a front window. It also has the additional benefit that the Scamp
is significantly lighter.
We attended the second largest Casita rally
one year and the Casita
16 owners thought our Scamp
was longer and wider than their's. The reason is the wider aisle of our Scamp's layout and the optical illusion of no front window.
I think you should consider the Scamp
16. It actually has a lighter tongue weight
than a Casita 13 and when loaded for travel the trailer weight
is less than your Outback's maximum trailer weight