We had an absolutely nice stay at Andrea's. She is very friendly and helpful and tried to make our time in Amsterdam as nice as possible.
At the first day she welcomed us with a delicious dinner and the room was very clean. We could use the bathroom whenever we wanted to (so we almost didn't notice that the bathroom was shared).
The room is in a nice area with a park but there are mostly Africans living there. There is a supermarket just a few minutes walk away and you can reach the centre of Amsterdam in 20 min. by the metro or in 30 min. by bike. There aren't many restaurants near by the location so you have to go a bit further to eat out but you can have nice meals in the room as well.
I would definitely recommend to book Andrea's room!