My friends and I had a great time staying at Juans place. It's a great area to explore Barcelona in all directions.
The one issue we had was due to the door to the building suddenly being stuck in the middle of the night. No one could get in or out. One of our guys was stuck outside together with guys renting other apartments in the building. All keys we were handed had phone numbers on them in case of an emergency. After trying to call the number multiple times, I was very disappointed that no one could be reached. This was a serious situation. Not only could some people not get into the building in the middle of the night, we were also stuck inside. Imagine a fire or any other hazard starting within the building and having to spend minutes on figuring out how to exit.