Our stay at Massimo's house was oke, but not worth the superhost title!
There were a lot of childish rules written everywhere, which we tought were obvious. For example: switching off the lights when leaving the house, and flushing the toilet after using it. Besides, the way he treated us did not give us a very welcoming feeling, something what is very important for us when staying at an AirBnb. We didn't feel very comfortable and we found it very awkward that he insisted to do our laundry for us (including hanging up my wife's underwear).
The room was very spacious and bright, but there are a lot of stairs in the house and the kitchen we were allowed to use wasn't on the same floor. This was really annoying, especially since you need to have some cold water in your room during the hot summers in Malta.
Massimo's place in Mosta is an oké place to stay when you are planning to hire a rent-a-car in Malta, because everything is easy to reach in less than an hour.