We had a very good time at Stefanos apartment. It is conveniently located just about 5 minutes walking to st Marks square and about 5 minutes walking to one of the bigger water bus stations. Super easy. Good bars and restaurants in 1 minute distance. Because of the very nice location you could hear the bars downstairs sometimes, but it was more of a quiet murmur in the back, nothing a good pair of earplugs can't fix.
I would definitely book the apartment again!