I had a great time at Damien's.
The place is in a great location. There are two tube stations very near (less than 10 minutes away by foot), which gives great access to the city, and also a Tesco shop nearby where I found everything I wanted to feed myself. If I forgot something, I could just go back in no time.
In the flat, I had all the space I needed and all the accomodations too. I lived a month there, and since I'm not a "crowd" people, I usually went out all morning and spend afternoons in the flat, which means I spent quite a lot of time inside, and it felt very nice. I was comfortable, not cluttered at all. I very rarely ate out and mostly cooked at home, and had everything I needed.
I slept very well, the bed was comfortable too, and I liked that it was in some sort of little "alcove". And for people that like reading, the flat has a lot of books, which is always nice.
Damien was a very kind host. Because of circumstances in my country, I had to arrive one day late, and he was very nice about it. We talked for a while and he was a very friendly person that made me feel at ease. During my stay, I didn't contact him often, but when I did, he answered quickly.
I'd recommend that place and that host to anyone :) Thank you again, Damien !