The apartment was perfect for what we needed for a short stay in Venice (it's a quick bus ride to the Venice bus/train stations, and the bus runs until nearly midnight). Unfortunately for us, we had a really difficult time with check in which led to us being let into the apartment 2 hours after we arrived. On the plus side, the owner allowed us a late check out on our last day which helped to make up for time lost.
The rooms were spacious and comfortable, and there were 2 renovated bathrooms with sunscreen and some toiletries. The guesthouse also provides a simple breakfast, which was a nice touch.
This is a good value for your ability to see Venice, without paying the high prices of hostels/hotels in Venice itself.