I recommend Ester's apartment wholeheartedly as a perfect base to explore Amsterdam (preferably on two wheels, since you have two sturdy complementary bikes at you disposal). The hosts Ester and Marc are very friendly and helpful, without being intrusive. The apartment with rooftop view is comfortable and spacious, thought it's best not to carry too much luggage as the stairs are steep and narrow :-). Loved the welcoming touches for the weary traveller such as the bottle of wine, the espresso machine and the well-stocked fridge. But most of all: the folksy quarter, De Pijp, is such a great place to discover. Two stand-outs for me nearby: the very friendly Moroccan restaurant Mamouche for fine dining and Little Collins, run by expat Australians and probably the best brunch spot north of Melbourne :-).