Stayed end of March. Lovely house and well located for Mdina and Rabat. There is a drawback for those not staying during warm months : heating in the house is not adequate for an end of March stay. When the sun goes ( or fails to make much of an appearance) it is wrap up warm time once inside and maybe start working off some of those pounds by a few trips up and down the stairs!
No doubt brilliant in Summer and should be cool as well.
We had a great time in Malta and just before Easter is a good time to go as it is not that busy and you can miss the crowds.