Very high positives and very high negatives. The apartment is beautifully finished, modern and clean, and in good working order. The location is 6 stars; the best rich neighborhood in Amsterdam and facing 2 canals; walkable to everywhere (about 15 minutes to downtown or Joordan or the Museum neighborhood), great shopping and restaurants, safe and mostly quiet. Bed is comfy, amenities fine, great shower, nice TV. Oh, yeah, there's a gorgeously furnished tiny backyard space that is all your and is a quiet oasis. Fantastic.
The negatives:
The apartment is half of the ground floor of a townhouse. It's absurdly narrow. The living room and kitchen are okay (there's a lovely yacht-style foldout table and chairs hanging on the wall, which works), but the bedroom is so tiny that the large bed is against the wall both head and foot. Okay for one person, ridiculous for two: you have to climb over your sleeping partner to use the bathroom at night.
The bathroom situation is a mixed bag, The shower is 6 stars modern clean and amazing. But the only hot water wash up sink is IN the shower, so the floor is soaked all day and you cant really use it. The toilet is in a separate room with a teensy cold water-only sink the size of a cigarette box; we had to wash up and shave there.
Check-in is a modern but not great system where you message the host when you arrive and he unlocks the door remotely from an app. Fine, but when we arrived at 3 PM , it took nearly 25 minutes and 7-8 messages to get the door open. The provided phone number did not work. The host apologized, but a key part of our day in Amsterdam was wasted standing in the street with our luggage. If it had been raining, we would have been soaked. A simple lock box with a combination would work better, but if you want to go high tech, YOU BETTER BE LOOKING AT YOUR PHONE AT CHECK-IN TIME. With no response, we almost left to get a hotel; we couldn't stand there all day. Compounding this, the host's rule book said a cleaning crew could arrive as early as 7AM. They didn't, but WTF? You took our money and want to throw us out hours before checkout? Not cool. Worst of all, a crew came at 6am on our last day to cut a huge tree at the building. They talked loudly right outside our window at 6 am. making sleep impossible, then blocked the door and cluttered the building and made impossibly loud noise starting at 7. Hard to know if this is the host's fault, but DON'T RENT OUT YOUR PLACE AND SCHEDULE MAJOR CONSTRUCTION THE SAME DAY.