This is a lovely flat in a canal within walking distance (20 mins or less) of most Amsterdam museums, etc. Very quiet location. Nicely furnished.
The front bedroom which looks onto the canal is easily big enough for 4 people to visit in. The kitchen is literally a corridor but is well set up. Bathroom for the back bedroom is along the corridor but shower and sink are in the room. *Very* steep stairs going up from entry hall to the flat on the first floor. There are good railings, but it would be awkward with very large suitcases or for someone with serious vertigo.
Checkin is at a third-party management service which will contact you via app about checkin and checkout times and other information. The service is located a fair walk from the location itself especially if you're carrying luggage. Not super convenient, and the person at check-in was very pleasant but he gave us walking instructions that took us a lot further than the most direct route, probably because he thought they were simpler, so watch out for that. They are in charge of management and can be texted at any time, will rent bikes to you, or provide breakfast. We didn't have any problems but I had the sense they were well organized and would deal efficiently with anything that came up.
Altogether a very pleasant place to stay in Amsterdam! High-quality sheets and towels and altogether comfortable and convenient. I would definitely stay there again!