The first season of this series starts off great, only to noticeably deteriorate about halfway through when it does that thing ‘prestige’ television seems so fond of: Pull out a plot twist that completely changes the show’s focus/themes. I’d still say it’s worth watching, lot of similarities to Bladerunner, The Expanse, and even a bit of Fifth Element (probably some Westworld there too… but I haven’t seen that), it’s just that it ends up merely watchable instead of a must see.
Fitting in between the first and second seasons is an Anime movie. It’s a side story (meaning it can be watched as a stand alone or completely ignored) done in what appears to be a cell-shaded 3DCGI style, and I would not suggest watching it as an extension of the series since it reminds me of Souten no Ken Regenesis more than any sci-fi work (except perhaps GitS). What is it with shows featuring inexplicable ninja armies? Am I just unlucky?
Then there’s the second season, which is quite a bit different from the first… and not only because the actor playing the MC has changed (one ‘benefit’ of having a setting centered on body swapping is the ability to shuffle performers at will). While that’s more of a conspiracy drama this instead focuses on an amnesia-themed and somewhat aimless personal quest, trading the police/detective elements for military/political ones. It comes across as pretty forced and lacks any of the pop present in the first season (though the finale’s pretty good).