It also has that rarest of rarities, Adam Nagaitis not playing a bad guy. OK, maybe not quite as rare as Burn Gorman not playing a bad guy.
Chernobyl is a really weird one for me. It's simultaneously both the best and most flawed series of the past ten years. It's not just the "what is the price of lies?" tagline demanding accuracy, it's that the changes were narratively unnecessary half the time*.
Why send Akmetov (?) off to stare into the reactor on pain of being shot when you had the alternative of the three valve closure volunteers historically not actually being volunteers but just being the first three on shift alphabetically? If you want to show The System not caring that's a perfectly fine example which actually happened. Why imply they died then admit they didn't at the end? Why use the Bridge of Death myth if you've already got the historical firefighters and plant workers to use? It's not like what really happened wasn't dramatic, and making stuff up for the drim drams cheapens what really happens. It's a massive compliment to how good the good bits are that I've gone out of my way to watch it so many times.
*and occasionally badly so. The Soviet Minister of Coal at the time actually was an ex miner. If you want to skewer a system for having out of touch suit wearers appointed for ideological reasons who have no idea about what their workers actually do you might consider a documentary on the MBA types running post merger Boeing, uh, into the ground.