We really enjoyed our stay at Mark's place. The flat was beyond our expectations. It was really well furnished (hair dryer, plug with adaptors etc.) and very clean.
We had a contact we could call at any time who was really reactive. We could leave our luggage at the flat before our flight.
The location of the flat is perfect: 15 minutes by foot to Valletta and to the bus stations with a nice view on the harbour and for the sunset over Valletta!