Juan is a great host, and was very welcoming and accomadating during our stay. As soon as we arrived, he helped bring our luggage up the stairs and gave us recommendations of the tourist attractions to visit as well as some local spots to check out! We took his suggestions and definitely enjoyed visiting the local spots. On our last night, he recommended a Flamenco show which we joined him for which was a treat as well!
The room itself is cozy for two individuals, but manageable for a short stay. Also, it can get hot and may be uncomfortable for some at night as there is no air conditioning. A small downside here is there is no lift, so take into account if you have difficulty climbing up and down the four flight of stairs.
Location wise, it may not be in the center of Barcelona, but it offers great public transportation options to get you anywhere you would like to go in a short period of time. We commuted by long distance bus on the way in and plane on the way out, and both times we were able to get straight to and from Juan's flat with no transfers or complicated directions.
Overall, Juan helped make our stay in Barcelona a memorable one!