I used to live in Barcelona and came back for a visit: this is truly an amazing location. Right next to Born and easily walkable to Gotico and Raval. Also very well connected with public transportation (for example, I could walk an easy 15 minutes to get on a train to Sitges at Passeig de Gracia).
Great wifi, very clean. The hosts also graciously let me store a bag in the common space for a few hours on my last day so I could walk around without luggage.
The room is definitely a bit noisy (internal noise because the walls are thin and also a bit of street noise), which is noted in the room description. However, I was not too bothered by this (and the hosts even provided some earplugs!).