Kees’s place is in a good location - out of the crazy hustle of tourist areas, but close enough to central Amsterdam to get there easily. The public transportation is also very easy to use around the city.
The room was clean, but the whole apartment smelled like cigarette smoke which made it a bit uncomfortable to breathe as I’m not a smoker. This bedroom faces the street, but it wasn’t noisy even though it’s on a main residential road. There was more noise from neighbors upstairs walking around than from outside. Also note that there are two bedrooms in the apartment which are both rented on Airbnb so you’ll likely have other travelers in the unit. It felt a little like a very small hostel.
Overall, I would recommend it if you’re only planning to be there to sleep which was the case for me.