Ne and my girlfriend stayed for two nights just before Easter. Myrthe is a really welcoming host, Amsterdam Noord is a great area to explore as an alternative to the city centre, and still Amsterdam Centraal Station and the city center can be reached in maybe 10-15 mins, using the free ferry to cross the river.
The studio was clean and furnished nicely, and since hotel prices in Amsterdam where sky rocketing around easter, a lucky find and great deal.
Myrthe offered to give tipps and answer any questions, but since we knew our way around the city already, we were just fine.
I would definitely recommend the apartment if you are looking for a good place to stay for a couple of days, and we would stay again ourselves any time!