Carlijn and Magdi's place is a little way out from the tourist centre, but that's kind of the point. You can get anywhere you need on the metro and then come back to a warm, quiet spot (We didn't use the bikes ourselves because of the rain but this is also an option)
The set up and communication was very slick and Carlijn sorted out any problems quickly. They make an effort to highlight parts of Amsterdam off the usual tourist trail and are always around for advice and direction.
Would definitely recommend to first time or repeat visitors to Amsterdam