We had a great stay! Alex's place is right next to the Zeterre dock which you can use to take the waterbus to anywhere in Venice.
The place itself was beautiful. The decor was super fun and the AC worked great.
Note, a tall person should take one of the bedrooms on the first floor of the apartment. The loft upstairs might lead to a couple bumped heads (I know from experience haha).. But everything was great and comfortable.
Highly recommended