The apartment was absolutely amazing. The location is very convenient and easy to find (5min apart there is a vaporreto stop "C'a doro" to everywhere, and from the other side a stop for the Burano-Murano trip "Fond. Nove"). Near by there are bar-pubs, restaurants, supermarket and gift shops. The house was very clean and warm with warm water 24/7. Also there is everything you need for cooking.
Elena was very easy to reach if you have any problem and she gave us very detailed and accurate information how to find the apartment.
I recommend Elena's apartment to everyone for a trip in Venice and if i'll visit the city again, she will be my first choice for sure.