We stayed here for new years eve and were really impressed.
The hotel is easy to find, and is only a short walk (less than 10 minutes) from Leidseplein, via Overtoom. The exterior of the building is really modern and the courtyard of the hotel is particularly nice (you will spot the hotel by the butterflies/birds in the window of the courtyard!). There is a side entry that you can use to enter the hotel which really makes it feel more like you are renting an apartment than using a hotel.
The interior is well decorated and looks fresh and modern, with the rooms a quirky shape. There was a FREE mini bar in the room (2 beers, 2 soft drinks and 2 bottles of water). There was also a nespresso coffee machine in the room. Bed was really comfortable, the shower was great and it was nice to have a balcony.
The staff were really attentive and helpful, willing to spend time discussing what is good to do in the city, and were quick to assist when calling them from the room.
Would definitely recommend this hotel!