Let's start with the good - the apartment is well-located, is big and spacious with all thing you need, great kitchen and living room, linens and towels.
However - the apartment description states that there are stairs to to the apartment, but this warning needs to be the first thing in the description - it is 4 flights of very very steep stairs (as in most of Amsterdam buildings). We were a group of mid-30-year-olds, but anyone older could not climb these stairs, especially with luggage.
Second of all - the description states that there are 6 single beds while in face there are 5.
However - we were satisfied with the way the management company took care of things.
However, inaccuracy in number of beds and the number of steep stairs is a must.
There are contradicting statements in the description and it should say - "There are 5 single beds + a 2 person futon in the living room...Also, the apartment is on the 4th floor of a typical Amsterdam building, meaning there are 4 flights of very, very steep stairs."