The apartment is located in an excellent location. I truly mean "excellent" because the position makes it easy to visit most of Amsterdam attractions, the neighborhood is just lovely (lively but yet quite enough), and a lot of facilities are close (farmer market is literally around the corner; other nice markets and plenty of restaurants, bars and cafes are at a short walking distance). The apartment itself has a beautiful living room (great table!), a kitchen very well equipped with all the essentials (and not essential - thanks for the coffee!) and other useful tools like a music speaker. It has a balcony that I find very convenient. The bathroom is a bit small but I understood that this is typical in Amsterdam because of the history of its houses. Sanne has been a great guest and made communication easy. She has also been very kind to provide us with some extra (e.g., a hairdryer) upon request. As a summary, I'd definitely recommend this apartment and I'd be also happy to be back.
The apartment deserves 5 stars. I gave 4 for at the "value" question just because, although I loved my stay, I found the apartment still a bit expensive (summing up all the costs it came a bit more than 200 a day) if compared to other apartments of similar quality I have booked in the past. However, we have booked 4 days before our stay upon a sudden cancelation, so it's quite likely that the usual price is a bit cheper, which would make this a true top-places-to-stay-in for Amsterdam.