Amazing place. Located in a traditional building with a typical maltese balcony, the apartment is beautifully renovated and fully equipped. And it's huge! There's even a relaxation/yoga room, and a whole room that's just a shower. It's also very conveniently located, close to Valetta and to buses leading to the whole island.
Ilona was also a great host, giving us lots of tips to discover the island.
The only nitpick I would have is that there was some smell of humidity, but it might be a general problem in Malta (I spent one night at an expensive hotel and there was also some humidity smell). To be clear, the place was extremely clean, no mould or anything.
I highly recommend this place!