Super packed between the hours of 6AM-9AM, 11AM-1PM, 2:30pm-close. It used to be you could show up early afternoon and get to the machines you want. They REALLY need to expand - they have basically just never quit taking new signups regardless of how full they are. Now your workout routine is forced to be "whatever is open this minute".
They also have poor allocation of the space they do have. Some areas and machines are super popular and you can never get a spot, like free-weights or pec deck, whereas the racquet sports or spinning room rarely have a visitor.