We stayed here for 1 night before heading to ABaC hotel for the rest of our trip. There is an elevator, but I wish I had known how to work it on the first day rather than climbing up the stairs. It's not like our basic elevators in the US, but very common in Spain. I now recall my host mom's place having one, from a study abroad more than 10 years ago. The host explained how to use it and we didn't have any problems with it after that.
The place is beautifully and tastefully decorated. It has a modern and minimalist vibe in its decor. I can't comment on the kitchen as we didn't use it except for the refrigerator and glassware.
The restroom has an annoying timer light. I say annoying because when we took a shower, the light would go off and if you're in the shower, it doesn't sense you. I had to call my husband in to turn the light back on, and he did the same during his shower. But, that shouldn't be a reason not to rent this place. The shower is nice and large and the water pressure is the best we had all trip (even better than at the hotel!).
The bedroom has a nice big bed...the largest bed we had in AirBnBs during this trip. Although, my husband and I didn't find the bed nor the pillows very comfortable. The decorative pillows also were dirty. We just set them aside and didn't use them. We were only there for a night after all. The place also has an air conditioner/heater unit. However, the weather was pleasant in Barcelona, and we were find with open windows while we were there and closed windows at night.
Overall, I would recommend this place to travelers. It is probably the nicest, most spacious and most modernly decorated place we stayed at during our trip.