Great little apartment in a perfect location! My husband and I stayed here a week and managed to get in all the sights we wanted to see by foot and via the hop on hop off bus. (We are walkers and walked a good 10 miles per day!)
We came in a day later than expected, but Gemma managed to accommodate our new time schedule by having her daughter let us in and show us around. Gemma communicated via email throughout our stay and we tried to meet up for drinks one night, but our schedules didn't mesh.
The apartment itself was clean and neat, with the outside terrace the main selling point as far as I was concerned! It was a great place to hang out after a long day of walking.
We'd definitely stay there again if we were going to be in Barcelona and I highly recommend it for a couple or single person.