Enjoyed our stay at Citiez, the staff were the highlight, they were very welcoming.
If you can I would recommend going for as big a room as possible. We were there for a two night stay and the room was fine for that length of time. Couple of things in our room: the hooks for hanging clothes were partially comimg away from the wall and wouldn't support the weight of a coat and the lights in the 'hall' weren't working. This was reported to the team.
Breakfast was fine, a better toasting machine would be great.
The hotel is a 25-30 minute tram ride from the city but there is a tram stop a couple of minutes walk away. If you're not in a rush to get into the city centre the hotel is ideal for visiting Amsterdam.