We had a great stay at Andrea's place! She's a very nice person and tries to help you as much as possible with all the questions you can have about the city. The room is very nice and cozy, and also Andrea prepares everything very well: a small fridge with great apples and water, teas, coffee, chocolate. And it's also perfect to have a restroom for your own.
Even though the house in the first moment might seem a bit appart of the center of the city, because you have to take the bus or the tram, you realize that it's pretty convinient: you only have to take the public transport (that runs every 10 minutes) and you'll be right in the center in 10 minutes.
If someone goes to Amsterdam I will for sure recommend her place!