Robert's apartment is in a fantastic location off the delightful Prinsengracht and is a wonderful base for a stay in Amsterdam. There is a tram stop very near to the apartment which will take you to Amsterdam Centraal in no time. The area has plenty of amenities of its own too. We had drinks in some of the nice bars near to the apartment and there are bakeries, restaurants and shops nearby too. There is a very convenient bike rental shop next door for those who want to explore on two wheels.
The apartment itself is spacious, light and minimal and was spotlessly clean. The bathroom has a dual sink and dual rainfall shower heads with great water pressure and the water is very hot. The kitchen is very spacious and has all of the accoutrements you could want if you will be preparing your own meals. Great terrace too if the weather is nice.
The apartment isn't really suitable for the mobility impaired as it on the third floor without an elevator and is a duplex with stairs in the apartment too. It will be no problem at all for someone who doesn't have any issues getting about.
I would definitely recommend Robert's apartment.