I stayed at Frederic's apartment for a week with my husband and one year old baby in November. The apartment was perfect. It is clean, spacious, and cozy. Frederic was able to provide us with both a crib and a high chair, which made our stay very comfortable! The laundry machine was also a huge plus.
Frederic, and his partners who were there on the weekend to check us in, were extremely helpful with recommendations regarding directions, restaurants, etc. Frederic also responded to our questions very quickly and is very accessible.
We loved the area as it is away from all the tourist attractions and it feels very mixed in with locals. We easily walked to Gracia and Exiample, and it is also very easy to get anywhere from the apartment using the subway. However this does mean that it is not right in the center of the city, so that should be taken into account for those who wish to be.
Overall, very highly recommend and we will love to stay here again in the future!