We stayed at Carlos apartment for five nights and really enjoyed it.
The apartment is spacier than we expected and has a big kitchen. It is nicely decorated and we felt at ease, relaxing from the busy citylife which is just around the corner. You don't notice this inside at all because it's a quiet street.
Carlos took a lot of time explaining everything and made us feel welcome. We found the mattress on the bed a bit hard, but that depends on your personal preferences.
We would recommend the apartment, because it has everything you need.