We only stayed at the apartment for 2 nights on the final stop from our 3 week trip to Europe, but this apartment was fabulous. I think what made it so special were the little touches left by the hosts: tulips, snacks, wine and beer, milk for breakfast, chocolates, etc. We felt at home with many of the same Ikea furnishings from our own apartment and the bed was super comfortable with nice pillows and a great comforter! We didn't get to use the terrace because it was so windy, but it would be lovely in the summer. Finally, Mark reserved us a taxi to the airport which was a huge help because we had no idea how to go about doing that!
ps. We didn't use the bikes because it was extremely intimidating watching the bikers in Amsterdam, but if you are experienced, the bikes are a nice plus!