Roman's place is located in a great and safe part of central Amsterdam. He effectively communicated directions on how to get into the apartment (key lockbox by the front door) and left other detailed instructions inside the apartment. The unit is exactly as the pictures describe and was very clean.
I will add, however, that it will take you about 35 mins or so to get to the airbnb if you fly into the airport - and you'll end up having the transfer train lines a few times. Also, there is no air conditioning in the unit so if you come from America like my wife and I did, please bring a travel humidifier or you will wake up with a very sore throat!