Sjoukje's place is a great base for exploring Amsterdam. It is not in the strict centre, but it is wakable and very well connected with trams (easy access to the central station, museum district, etc; around 10 mins). It is close to Jordaan, a very cool neighbourhood that you should totally explore! The place itself was sparkling clean. Sjoukje's cat, Naz, is a free spirit, so you will not see him much! One thing to note is that the room is small (the bed is big though and comfy!), so it is not for people who like to chill in the bedroom during the day. But Amsterdam has so much to offer that this should not be an issue!
We did not meet Sjoukje in person as she was away, but she arranged the check in and check out so that it went smoothly. She also explained all the important bits about the apartment and left books and tourist information in our room (including a really cool book on understanding the Dutch:)). She seems to be very relaxed and easy going person.
It was a pleasure to stay in Sjoukje's place. Good value for money in Amsterdam!