As an Organization TSK is horrible. YES, they teach their own style of karate, and it's a great style. But, they let money get in the way of teaching. If you have money, you can learn, but they are very expensive compared to other schools. You try to send a letter to Tiger Schulmann and you get a call from his legal office, instead of hearing from him. You try to call, and you get the same thing.
Pros: Good training
Cons: too expensive and too business minded