Stop looking now and book this apartment. It is beautiful, spacious and in a gorgeous neighbourhood.
The flat is easily accessible from Schiphol, via the new Metro line. Nearby there are lots of FANTASTIC places to eat and drink. The nearest supermarket is 1 minute walk away and you'll find everything you need within a five minute walk of the flat.
In terms of the access to tourist attractions, they can almost all be accessed by jumping on the number 12 or 24 tram, both of which stop minutes away from the apartment.
If the weather is nice, the rooftop terrace is a real bonus providing 360 degree views of the neighbourhood.
Communication with the host is easy and quick - really pleasant to deal with. Stop reading this now and just book it.
(ps. the stairs are very steep - as you would find in any Amsterdam residence of this type.)