The apartment is perfectly located in walkable distance to any major destination (approx. 20 minutes to Piazza San Marco) and surrounded by countless nice bars and restaurants. I stayed there on my own and I had no problems whatsoever regarding feeling safe even late at night.
The place is small but has everything one needs. The only real drawback was that I was devoured by mosquitos - I killed at least 20 of them and still heard them all night.
All in all a very nice stay nonetheless! Thanks!