We had a very pleasant stay at Leonard's place. The flat is nice, with character, spacious, in a quiet street in the center of Valletta (very close to Lascaris war rooms, ferry to the 3 cities, etc.).
We appreciated the warm welcome from Leonard and easy communication with him. Shampoo and shower gel would have been a plus - especially as they are listed on the accomodation web page, as well as dedicated bins for recycling - our 2 other experiences with Airbnb demonstrated that this is possible on Malta and Gozo islands. Overall, we recommend this place to visit Valletta over a few days.