We were two 21yo friends stopping 5 days in Malte before going to Italy. Objectively, the flat was perfect for our use. It is well located, not far by foot from the main bus lines to move on the island. It is also only 30min walk from PaceVille (the place to hang out at night), which allows you to easily come back even after the last bus. Maria was really welcoming and care about your well-being, as well as the other guests in the flat.
However, if you are looking for the perfect flat, this one might not be for you. There’s a slight lack of pressure in the shower, a little dog barking sometimes. Those were not big problems for us, it just depends on what you are looking for.