Martijn’s apartment is a great spot for exploring Amsterdam! It's around 20mins walk from the center but there are plenty of places to stop along the way. Couldn't ask for better service from Martijn - easy to reach via phone on check in to get keys and leaving bags as we had a later flight was no hassle. The apartment was clean and tidy and had everything we (4 adults) needed for our stay. Don't see the point in people complaining about the stairs - it's on the top floor of a typical Amsterdam building, hardly a surprise! Keeps you fit! Would recommend to anyone - thanks!