First let me make it clear. this all is my personal opinion so you should make your own decision wether you like it or not. you should watch it for yourself. if you like it continue and if you don't just drop this episode. To start This episode has nothing to do with the plot of season 1,2 and beyond. The episode is a side story with funny interesting and action packed parts We're finally introduced to some known characters that we only saw a glimps of in season 1 and 2 which makes them even more interesting. *animation 9/10 It has amazing qualty the coloring ofthe attacks, the town and the surrounding. it looks good with the scenario they're in.
the way it is animated is fluent.
It's hard to describe this but when you watch it you'll know XD

*Soundtrack/audio 8/10

Some of the music was really captivating really belonging at that part of the episode.
It really fits in with the background the scenario, it fits even so good that i barely hear it since it gets mixed in perfectly with what was happening

*Plot 5/10

Since it's a special there isn't really a plot in it. you just get drawn into a new place get a little bit of info they try to do what needs to be done and the end
However we finally get to see the liberators alive and kicking.
It made me laugh quite alot and pretty hard though.

The only thing that i dislike the most about this episode is that it could've been better if they made it into a movie.
It had such great potential for it, but instead they made it a special. due to the time limit of it there wasn't much room for some other stuff like more info about who the liberators are, what they are like, how they got where they are or other small or big stuff.
we can only hope we get to see a spin-off about their journey after hajime's journey ends.
Besides that it was alot of fun to watch it

*overall 8/10
This could've been a 10/10 if it was a movie with more time in it.
But nontheless i really enjoyed it.
I recommend it but it's up to you to decide.

(P.S. this is my first review. hope it will help)