Short version:
Apartment is as described. Wifi is good enough for zoom calls and other stuff, just 2 times it was a bit rocky. Apartment and Area is great. Just a bit noisy because the walls are thin.
Long Version:
I stayed in the apartment for alsmost 2 months and I had a really good time. its ideal for one person (maybe also a couple). there is everything you will need.
Bed is comfortable (matress is good, not to soft or hard). I found it a bit noisy, as the walls are really thin and sometimes you can here a dog. But thats normal in Barcelona.
Kitchen was well equipment with everything I need for cooking, it also had a little Coffe Can for the stove.
Aparment has natural sun light but not a great view.
The Check In was on time and really nice. But I wished I could have seen the contract before my arrival, as I had to signed it right away without having enough time to read and translate it properly. But contract was okay and nothing was weird in it. I also had to pay the cost for water and stuff at my arrival by card, but I knew that and it was okay.
The communition could had been a little bit better. I had 2 issues in the flat and it got repaired after 4 weeks I report it. Issues was not a big deal, so it was okay.
The area is really nice. Inside the old town, and supermarked and laundry salon is around the corner.
Air Conditioner is working good and was a big plus on the hot days.
All together I really enjoyed my stay and I recommend this Airbnb.