Buy it for the plot, but don't expect anything else.
TL;DR: Only buy this game if you want to know what happens to Clementine between Season 2 and Season 4. As an individual game, this game has horrible writing.
I think Season 3 proves how Telltale completely butchered the series and it would explain very well why people glorifies Season 1 as the "best of the series" because this game is so unpredictable (not in a good way). Most of the choices are so obviously binary and these choices are not even that "good." While Season 1 makes you feel ownership over Lee's choices (or at the very least makes them believable), this season completely ignores what you think or feel as a player (or even if Javi would actually make these choices), and just forces these so-called "difficult choices" gimmick to you. I hate how the game thinks it's forcing me to think it's smart whenever the "important choice" comes up while I'm just sitting there, groaning at the stupidity of it all.
Even if you think you're making a decision or at least aligning the decisions with "what Javi would do," the game then immediately takes agency away from you by either putting words in your mouth that are completely far removed from what the short text says or worse, completely betrays your choice by having other characters mess up an already frustrating decision.
Then, we have the borderline bipolar characters with their ever-swinging moods. I get it, it's an apocalypse and basically everything stresses you off. But, come on, man, these characters have been surviving the outbreak for years and I expected at least some of them to be much, much smarter than how they are portrayed. The adults here are especially frustrating, as they are written in such a way to create unnecessary conflicts with Javi or between each other, even though that there is a very easy and obvious solution to their issue. I would be more understanding if these "conflicts" happened early on and then the group learned from it and become better communicators but oh my goodness do they never learn to keep their heads cool.
While deaths in Season 1 felt powerful and purposeful, the trend of shocking deaths for shock values' sake started in the latter half of Season 2 continues here and in my opinion it just gets worse. People die all the time in this universe and that I can understand, but what I cannot understand is when characters die so suddenly and so out of left field. These characters were already well-built (in regards to their relations to Javi, I guess) and then just dies to shock us for an episode. It feels so cheap and pointless, and I think that's saying something about the quality of writing.
All in all, this game is a massive trainwreck and unless you're buying the discounted 4-season bundle, I would suggest you to just find a YouTube recap on what happened in-between.