"When we arrive in Scranton, it's like The Beatles and The Pope arriving at the same time" - Oscar Nunez.
This documentary completely ignores the differences between the U.K and U.S versions and was made, mainly, to inflate the egos of the writers and the cast.
They also chose some of the worst scenes to display their style of humor in the clips. They have a ton of better scenes they could have chosen from. They try to depict, that the romance between Dwight and Angela, Erin and Andy and Michael and Holly, was on the same level as Jim and Pam and that just isn't true. Jim's and Pam's worked so well, because it was almost entirely a copy of Tim and Dawn's from the original U.K show. The rest just felt like drama for the sake of it.
In reality, they had to end the show because of the amount of ridicule it was receiving at the time. It ended way later than it should have and Rainn Wilson carried the entire show through it's last few seasons almost single-handed.
In conclusion, this is mainly for die-hard fans of the show.