I stayed here for a few weeks and it was absolutely amazing. First off, the location is as ideal as you can get. It's in the city center but it somehow manages to be on a quiet street so it's close to everything but you don't have a bunch of tourists walking outside your door. It's designed as a place where you can live and work if you need to do it's perfect for digital nomads. Even if you don't have work, it's still a great place but don't expect it to be a party hostel if that's what you're looking for.
The beds and rooms are private with curtains and everything is kept clean by the staff. Very comfortable stay. Most importantly though, the staff here is amazing. Heloisa, Fernando, Sam and Jessie were all extremely friendly and accommodating. They've all been living in Barcelona for a while and are able to give good suggestions for anything you want to do or see. It was my first time in Barcelona as well as doing an extended trip and it would've been easy for me to get lost and overwhelmed if it wasn't for their help. Heloisa said she was able to appreciate Barcelona because someone took the time to show her all the special places in the city and she really takes the time to do it for guests if they take the time to ask her, so she passes that on to others and is the perfect person to ask.
Thanks again to everybody!