Carolien's flat was perfect for my trip. Though the flat is listed as a private room, I felt it was more like having my own studio apartment.
Getting to Carolien's place was very easy by taking the tram from Amsterdam Central station. Her place is literally about a half block from the tram station. The location is also very nice, it's a residential area so you'll find it to be very peaceful. Also, plenty of great cafes, restaurants, and beer bars all within walking distance.
The flat had everything I needed, very clean accommodations, excellent wifi, the restroom was very big, and the view of the canal is excellent. Also, they provided fresh fruit, candy, and refreshments in the refrigerator when I arrived - very nice touch!
I didn't meet Carolien, but I was greeted by her husband, Kim, who showed me around and provided some general suggestions around the area.
I would highly recommend Carolien's flat for anyone looking for a "local" experience in lieu of staying at a hotel. I plan on returning in the future.