Great place to stay and use as a base camp to explore Amsterdam. Ruben's place is very near to shops and a few placed to eat, and isn't a million miles away from the centre either. You can pay 7 to 14 euros to uber back and forth which is worst case cost for a late night fare so it's perfect. Totally walkable too.
Room we had was lovely with a chilled out view of some gardens. There was a party going on in neighbouring apartments but this was actually really nice to hear, and didn't go on late.. A true residential feel of friendly people. You can't go wrong here :) thanks Ruben.