Karl was a very helpful host, very quick to respond to requests. He also gave us good advice on the best beaches and places to go.
The flat is large, comfortable and well equipped. Everything was extremely clean and tidy.
It's in a really good position for getting around, both by bus and by car. The nearest beaches are a bit of a trek but that's offset by the fact that Mosta is away from the crowds. It's a great little town, offering everything you need, including reasonable places to eat. Highly recommended.