This movie is not canon in any way so be aware of that, but it's still worth checking out! Especially if you watched and enjoyed any of the many many other specials and OVAs that have been released! (Although you don't have to have seen any of them!)
The comedy is the best that the series has to offer, and the whole thing is divided into many segments (some of them returning many times) and what-if scenarios with all of the characters we learned to love after 4 seasons, a movie, and many specials/OVAs.
Did you enjoy the Mapo skits in 3rei? You'll love this then.
Do you want to see our lovely girls going all-out fighting in a deadly game of... hide and seek!?! Got you covered!
Assassin-Shinji trying out many different jobs? I don't think anyone would have ever asked for this but.. it was surprisingly funny.
Overall this was a fun and light experience, a nice change of pace after the darker tone of the last movie.
If you enjoyed this, you should really try out this and this, they are the best of the bunch.