The Casita is a very adorable little place. It's exceptionally clean and modern. It's located in a very quiet neighborhood yet only a short (albiet very hilly) walk to the shops, restaurants, and touristy things in Old Town.
My husband and i were there for the weekend because my husband had to work the overnight shift. Stephen arranged for us to have an early check in so that my husband could get a few hours of sleep before his shift started at 6 pm.
It was a phenomenal experience at The Casita. I highly recommend this guesthouse as well as these hosts. You won't be sorry that you made the decision to stay there.