Rosa is the perfect Airbnb host: super communicative, extremely helpful, and so so kind. We had a pretty hectic 24 hours prior to arriving and she was extremely flexible in meeting us, providing us with tips on where to go, and just being extremely welcoming to Barcelona. It's the perfect size for a couple and comes with a firm bed, EXTREMELY fast wifi (great for video calls too), enough seating for multiple people, a balcony to overlook the streets, and a well-sized bathroom counter for all your toiletries.
Two caveats:
1) the toilet/shower area is a bit tight. I'm pretty small and felt it was a bit narrow, my SO is 6'5" and felt very cramped, but that's typical Europe so not a huge surprise nor damper to the experience but just something to keep in mind if you're not used to/expecting that.
2) you will hear the sounds of the city in the morning (trash being thrown, people talking on the streets below, scooters zooming by, etc.) but that's city living. If you're a light sleeper, just keep that in mind.