I had such a wonderful experience with Donato and this airbnb.
As for the place: it is very close to Park Guell, so I was able to visit the beautiful park a few times during my stay! The room was very accurately described on airbnb -- clean and bright. The bed is big and comfy, and the bathroom/shower was sparkling clean as well. He had a variety of power adapters in the room, but if you're coming from the UK or anywhere else outside of Europe you may want to bring your own just in case -- I thought of this at the last minute and bought one in the US and was glad I did.
The location was perfect for me, but if you have any mobility issues, do be advised that getting to Donato's place involves a pretty steep uphill walk -- even from the nearby metro stop -- and once inside you have to climb some stairs. That said, the neighborhood is beautiful, the metro is close, and again, the proximity to the park was a huge plus.
As for Donato, I could not have asked for a better airbnb host. He was friendly but not nosy -- when I wanted to chat he was happy to chat, and when I wanted to be left alone in the room he didn't bother me. He answered all the questions I had about the area, and I had questions about everything from transit options to tourist attraction fees to tipping at restaurants! Also worth noting that as a solo female traveler I felt very safe in this airbnb (and in the neighborhood in general).
I would highly recommend staying with Donato!