Our stay in Venice was great. The apartment is exactly as advertised, it's very nice. Although it's at the top of the building, so quite a few flights of stairs, I really enjoyed the view from our windows.
Irene was very friendly and helpful, although we didn't get to meet her in person. She had just recently given birth, so she had a friend meet us and show us to the apartment.
Also, there is a great restaurant right outside the door, which my wife and I ate at every night (Antico Gatoleto).
The only (minor) complaint I have is the bed. The blanket was very very thin, and the mattress was cheap. I had a lot of trouble sleeping, but keep in mind that I had some serious jetlag and am picky about mattresses anyway. The A/C was very cold though, so that kind of made up for it. All in all, we were very happy with the stay.