As stated in other reviews, Cityden is an apartment complex and as such, we were required to pay a €300 deposit when we checked in, despite having paid for our accommodation through Airbnb. The apartment does only have one closed bedroom but it was a great apartment for our family of 6. It wouldn’t be so suited to friends travelling together. The location was easy to get to using trams or a direct bus to/from Central station and the front reception staff as well as the restaurant staff were all very friendly and helpful.