We had a very enjoyable stay here. The accommodation is in a very central location and only minutes walk away from the Piazza San Marco.
The bedrooms were spacious and the air conditioning was great under the heat (but it can be unresponsive at times). There were also a lot of mosquitoes when we visited in late June, so I'd recommend having some repellent on you. It was also a little noisy past midnight as we could hear a group chatting loudly out on the street, but it was quiet most of the time.
We also had to throw away our own rubbish at the nearby rubbish collection boat in the morning.
Apart from these small points, we highly recommend staying here!