Excellent place, excellent host: one of our best Airbnb experiences.
Marsaskala is ideal for discovering the southern part of Malta, and the flat of James provides all the amenities & comfort for a calm stay. The flat is very big, clean, bright, suitably equipped, featuring pleasant furniture & decoration, comfortable beds. The view is as amazing as advertised, and a nice beach and the town center are at walking distance. It is perfectly calm, we weren't disturbed by noise.
In addition, James was prompt and kind in helping us out in all our needs, including guiding us to the flat and driving me to an ATM as I had no cash for the security deposit (I haven't noticed that there is a €200 security deposit payable in cash upon check-in even if this is properly indicated on the Airbnb site of the flat).
To summarize, we highly recommend James as a host and Ullswater Flt 9 as a place to stay.