Nik's place is located in a very convenient area. It's very central and very close to the central station (walking distance) yet it's on a quiet street. We checked in at 10pm and Nik greeted us on arrival. He provided brief explanations about his place as well local tips. He checked in with us the following day to ensure everything is ok and he kindly offered keeping our luggages after check out time since our flight was late at night.
Thanks for the hospitality, Nik! We had a great time in Amsterdam and highly recommend Nik's place to anyone visiting Amsterdam.