We had a great stay at Robert's appartement. Everything was like in the description and it was really enjoyable as you have everything you need if you want to chill (wifi, music, video games etc..). Besides Robert has been really kind with us by giving great advices to hang out and enjoy Amsterdam's nightlife!
I would really advise friends to rent Robert's appartement if they want a nice place close to the center. We were a group of 4 and we are all really satisfied!