Perfect quiet place in the dormitory area in the center of Marsaskala. There's 3 AC in different rooms that allow you to get rid of the heat or not to freeze in winter. The host is superresponsible and friendly. The view from the main bedroom balcony is magnificent. I highly recommend this apartment!
P.S. If you're experiencing difficulties trying to find the place - try to google "Triq l-Iskal, Opal Court, Marsaskala" in Google Maps. You'll see the exact place coordinates.
P.P.S. If you want to rent a car - I'll recommend the "Baron" car rent service. +356 7932 6749, sean-vella@hotmail.com, Sean.
I used it personally and was satisfied.