Small studio but in the heart of the city. The walk to S. Marks square was very close as advertised. The apartment is a little dated but I believe that's fairly common for the city. We absolutely loved our stay with one exception, the air conditioning on the last day didn't work and later that night the gas stove ignition switch kept clicking as if trying to start on its own. As a result, the local help desk asked us to turn off the gas and electricity to the apartment given the late hour of the problem (around 1:30 in the morning).
Although the last night was a bit of a problem, I still recommend the apartment and would love to come back.
I will close by saying that we were met at our "boat taxie" stop by Andrea who was very friendly and helped alleviate some of the stress that most likely would have occurred had we been required to find the apartment on our own.