Maria is a very informative and helpful host :) Whilst she was away during our trip, her housekeeper Sabrina was really nice and kind enough to even look for us in the city when we couldn't find the place!
They provided a guide book for all the things you need to know about the house and even suggested places to visit and where to try their local delicacies.
The house is very well worth the money you're paying for. Hot showers, huge beds and rooms and it has a very unique interior design. Sometimes you feel like staying indoors all day because of how beautiful it is! The house is also very ideal as a location in Valleta because you are able to walk everywhere and you are near the central bus station (which is the main public transport for getting around Malta.)
I highly recommend this place, and I would book it again should I ever return to Malta.