Martine is friendly and the neighborhood is very beautiful.
The bathroom and the room are perfectly fine.
If you have something to do in the surroundings of grein it’s a good place to stay but into the city it takes around half an hour.
And you should consider that you are not allowed to use the kitchen except for grabbing a bowl for breakfast,whereas in an expensive city like Amsterdam cooking in the evening saves a lot of money.
Additionally if you are arriving later in the evening you have to be very very quiet.
We enjoyed our stay, but I think especially for sightseeing in the city and exploring the nightlife something else would have been better ;)