I stayed there with the family (myself, wife and two young children) over two nights. We arrived late Friday night and concierge there to provide us the keys and tell us where to park. All hassle free.
Great stylish apartment in a great location. The spa, sauna, pool and gym are also a fantastic addition. We spent our mornings having a spa and swim before starting the days, it was great. Easy 5 mins wall to the restaurants and shops in darling harbour.
There is also a secure reserved parking spot for the apartment which is a must have when staying in Sydney CBD.
I recommend staying here.