Marie-Claire, her husband and some kitties are nice and friendly. They replied always quickly and helped us print out the boarding pass. When we checked-in in the late evening, they still warmly welcomed us. The location of the house is very convenient, which is easily to reach the public transportation, eg. bus and ferry, the supermarkets and the city center Sliema.
The things I feel pity are firstly that the length of beds is too short (around 170 cm), so it's easy to bump into the headboard and footboard while sleeping. Secondly, the breakfast offered (1 loaf of toast, 1 glass of strawberry jam, 1L milk, 1L juice, 2 bottles of beer and 1 box of cereal) is for 4 days for 2 people, which are actually only enough for us to eat for 2 days, so we had to prepare our own one for the rest days.