Nikita's place is excellent! I would highly recommend it to anyone visiting Venice. It was in a great area - just a minute or so walk from San Marco Square - and close to many lovely shops and restaurants.
Nikita was very accommodating and gave us great recommendations for where to eat and what to see - also advice on the best shops to find masks.
The Loft is really lovely - clean, comfortable, and with a view of the square. It was a bit hard to find in the dark and rain without GPS, so be sure to get a good map if you don't have that - the street is small and easy to miss if you don't know what to look for.
Definitely perfect for our short stay in Venice!