Valentina' place was big, spotless and super clean. As commented on previous review, the space is one big room, as the bedroom is not a separate room, so as it was fine for us as one couple, it might not be suitable for 4 people or two sets of couples as there isn't much privacy. Also there could be more kitchen utensils provided, ie a chopping board and more dinner plates and bowls.
Apart from that ,the place was in a great location, a few minutes to train station and bus stops to go to Venice, only 1.50 Euros. Mestre is a great place to stay, there is an excellent fresh veg and fish stand around the corner, and the town centre is a few minutes walk with a pedestrianised area full of shops and restaurants. Also the buses to Venice run all night, so no worries about getting back to apartment after a night out in Venice. I would stay here again should I come back to Venice.