Ambani, his wife and three children have moved into the building which is named Antilia, after a mythical Island. It contains a health club with a gym and dance studio, at least one studio, a ballroom, guestrooms and a range of lounges and a 50 seater cinema.
There is even an elevated garden with ceiling space to accommodate small trees.LINK
It's actually a pretty interesting design, and there have been some similar looking highrises proposed or under construction around the world.
In fact right here in Calgary local architect Jeremy Sturgess has a proposal that shares some similiarities with this design, it would be located just west of Macleod right before you cross the elbow river: