We only stayed one night, the night of our red eye arrival, but this was a great place to rest and recharge. The bed was 10/10 (not firm, but not too soft). The location can't be beat for exploring fun places to eat and drink. You will not be disappointed by staying here.
One thing to note for the skeptical: yes, the stairwell going up is tight and low, making it difficult for a 6'+ person to go up or down, adding in a regular sized checked bag also not the easiest, but it's all doable and worth it. Last note for those perusing places to stay in Barcelona: some folks in reviews mention a sewage smell and you do get that everywhere because it's old infrastructure. We got a brief moment of it in the evening, but it went away quickly. Again, just to end on a good note, the place is fantastic and 10/10.