I recently stayed at Ashley and Maarten's apartment and I could not recommend it more. From the location (close enough to the city center but not too close), the local area and the apartment itself were all fantastic.
Ashley herself was not there to check us in but her partner Maarten was, the check in was simple. The apartment itself was lovely, clean and beautifully furnished.
If you're looking for somewhere in Amsterdam to stay that is in a good location with great transport links (the tram stop is 30 seconds walk from the front door), then this Airbnb is the place for you!