It's amazingly good.....! I really cried after watching their hard work and just feel good for our 4 girls!!!! They deserve the highest place... And it's really difficult to have 4-5 dance and singing performance in every month for 5 yrs. And I think being a trainee is really difficult and even in the age of 14 to 16. They really work hard and really hats off for all of them. They have to sacrifice their high school memories and family memories for their dreams .... And yeah it's worth.
Finally wanna say that it's the best documentary I have ever seen