Fantastic apartment right in the middle of San Marco area. My wife and I loved our stay there, not only was it well located but very clean, spacious and comfortable.
Martina's nephew picked us up from the ferry and showed us to the apartment and then explained the area. Very kind and helpful people.
Also has a washer/dryer, which is amazingly useful after backpacking without one for a few weeks!
Great place to stay, highly recommend it.