My stay in the Adrian's apartment was really pleasant. It's clean, quiet and very well positioned. The apartment is near to the bus (to go to Valleta or other place) and near to the Spinola Bay.
I have been in contact with Hans and he's a very good host. He was waiting us in the apartment when we arrived and he presented us various places to visit in Malta and how to use the buses. Moreover, he's very reactive.
So a very pleasant stay with no problem !