What a great place! All you need and nothing you don't. The flat is in the Old City which is pretty load and busy, but in the room things were very quiet. The bed was massive and quite comfortable. It's a stylish, yet comfortable place to spend your vacation! The only small negative is that the stairs are steep. This is common even in hotels in Amsterdam, so I'm really just letting others know. The stairs didn't bother us in the least, it's a nice workout.
I would gladly stay again!