TLDR: Awesome apartment & terrace, highly recommended.
Ahmed was a very responsive host. We stayed for 2 months at the apartment and had a lovely time. The apartment is great with an awesome terrace overlooking the city, which has sun from 13:00 - sunset. You get beautiful views of the skyline and the best of the weather.
It's a very stylish apartment and medium-sized terrace, with an outside table and chairs. There is a small but fully functional kitchen with a coffee machine, toaster, good quality oven, fridge etc. The bathroom was spacious, clean and comfortable and the clothes washing area too (including the sheltered clothes line). There's lots of storage and the internet connection was fast (I worked remotely with no issues).
The location was amazing, in the trendy area of Poblenou, and is 10 minutes walk from the beach front. 30 minutes walk into the centre (Gothic Quarter), and 20 minutes on the metro.
There is a large grocery store in the building next door to the apartment block, which means you can pop downstairs for shopping anytime. There are also plenty of other amenities in the area, so you won't be wanting for anything. The building is well cared for, with good quality lifts and ramps for disabled or the elderly, to get up to the Attic level.
Just be aware that the electricity is paid for separately after your stay on top of the initial airbnb payment.