The apartment is exactly as advertised. Easy to find. Easy to access. Everything you need for a short stay. The internet connection is superb.
Antoine is very friendly, usually replies fast to messages and is very helpful/flexible as he made an early check-in as well as a late check-out possible, which I was very grateful for.
The only thing people should know IMO is that the apartment is in the basement with only one window. Therefore, it is somewhat dark and there is a bit of mold in the bathroom shower. This is quite common for basement apartments in Valletta and I have personally seen worse before. They all have to deal with high humidity, especially during the winter months.
All in all, I would definitely recommend Antoine's apartment and would book it again.