This accommodation is best suited for people who stay for a short period of time and don't need to stay home all the time, like backpackers visiting the city : it is "cheap", well-located. If you have a very small budget, it is also a solution.
However, it is not well suited for digital nomads or people like me in transition looking for a long-term accommodation : the apartment was very dirty, especially the bathroom and kitchen. I had to ask for any single toilet paper roll... otherwise Marco wouldn't put it. A lot of things are broken/don't work. It is very difficult to cook because many useful things are missing like a basic dishcloth. There was also no space on the shelves to store the stuff you bought to cook, because they are filled with useless stuff.
My room was beautiful, wide and with a lot of light. Great terrace too. But that's all there is. I had to work from home, but did not have wifi : it is just available in one room because of the size of the apartment. So if you absolutely need an internet connexion I wouldn't recommend either.
The communication with Marco was also difficult, lacking cordiality. Even after my departure he accused me of killing his plant for instance (???). It is an irony blaming all the guests for the problems in his apartment because in my opinion he does very few/nothing to keep it clean and maintain it functioning. Not the best atmosphere when it's your first week in Catania.
But of course, if you just need a place to crash at night it's ok.
Many things to improve. Good luck