We only stayed one night cause had missed our flight in bologna that same day. Its was very convenient for us to stay, we booked it only 3 hours before arriving to Venice. It's close to the center so we could visit the city by foot easily and it's close the the station.
We had only a three hour sleep and it was pretty bad because of the mosquitos and the heat. Air-conditioning would have solved that. The building looks creepy from the outside, but is actually pretty okay from the inside.