Let me start this off with one pretty important statement: I'm not a Blink. I listen to Kpop in general and also to at least some of BLACKPINK's music, but I'm not a Blink. I watched this documentary mainly because it was recommended to me by Netflix and I decided to just watch it, because 1. I'm interested in what's going on behind the scenes in Kpop, though I definitely don't have enough time to watch much content about it and 2. I like the girls and have lots of respect for them, so I was interested in their point of view of their story.

I liked that the documentary was pretty much in two parts, one about the members themselves and the other about their story as trainees and as a group. I was surprised and found it refreshing how open they were about their training period and the difficulties of that kind of lifestyle, especially considering that this was intended for a lot of people, Blinks and non-Blinks as well, to see. I would have expected them to tone down the shadow-sides much more, I'm pretty sure they were anyways.
My takeaways from the documentary are that I do like them and their music, and that there is much more to their story than I've known: I did not know about their relatively long training periods (most groups I know them had trained for about 3-4 years with the occasional longer or shorter periods, everyone having trained for at least 4 years was a bit surprising to me), and I did not know about injuries and general health, which honestly explains the /scandal/ from a couple years ago (which I honestly did not care about... The so-called scandal, I mean)

TLDR: Some interesting information for non-Blinks who may or may not listen to Kpop in general, not exactly a must-watch but still worth a watch