We spent over a week in Carlotta's apartment. Carlotta was a great host, she provided us with many useful information and was always available. The apartment itself is very nice and spacious with nice bathrooms and enough room for a whole family. The distance from lake is alright, it is not right in the tourist center, which is nice and there is also a couple of fine restaurants 5 min out. However it is right next to a busy road, so you can't really sleep with open windows because of the noise, which is quite uncomfortable in hot summer days.
One more thing you should know is that the apartment is on the ground floor of the house and there are more rooms on the 2nd floor being rented out. They are accessed by iron staircase mounted on the house wall and it makes really terrible noise in one of the bedrooms when people walk or run on it, especially when people arrive late at night and move their stuff from car.