Yes, it's pretty short and fast paced so you can't complain about getting bored/wasting time if you end up not liking it. To its credit, the storytelling is done well, lots of showing rather than telling/expositioning, there's a lot of impactful scenes and an interesting enough premise.My
only bone to pick with it is how their relationship is depicted, that is kind of unhealthy and abusive (as opposed to the manga and LN) because it tries to adhere to BL tropes.
I personally liked it but then I ended up reading the LN and it was on a whole different level, so now I'm biased as hell. Then there's the manga, which holds the upper hand as far as visuals go and also features a story closer to the novel's canon.
As for things to like about it:>worldbuilding
Postapocalyptic dystopian universe. War never changes, the world is now fucked and humanity's pulling a Brave New World type of deal. >plot
Smart kid meets angsty rebel. They research a freak outbreak of killer insects while plotting to burn down the status quo. >characters
Have some depth to them. They do a lot of growing up, both of them. Have good chemistry. There is also canon same sex romance. >feels
Brutal. Have a box of tissues at hand, just in case.
Again, I'm biased, so I'm gonna go with the 'Watch the thing but read the LN and/or manga for the best experience and full story'. Main difference is character development and relationship, which is far more wholesome and fleshed out. The ending also makes far more sense.