I absolutely LOVE 9Round. Its a great workout and the trainers are knowledgeable and so helpful. Every workout is different so you never get bored. Its for every fitness level, even if you haven't worked out for awhile, the trainers help you become better and in better shape.
The workouts change daily so I never know what I'll be doing. This keeps it interesting and fresh. It is also something that I can go to at any time during their open hours and not have to schedule a specific time for a class. They have trainers to help with form and to motivate. I'm enjoying it!