Alex, his wife, son, and the dog are very friendly, charming, and amazing. They give you complete privacy and always ask if everything is alright or if you need anything whenever they see you. My cell phone charger cable got torn and they even gave me their cable to charge my phone. Best place for solo travelers.
The location is great, just next to Ciutadella Park and the Arc de Triomf. The metro and bus stations are within 5-10 minutes walking distance, you can go everywhere in Barcelona from there.