If you can handle the misery porn in the first part, you'll be rewarded with an extremely bleak second one. This is not a feel-good movie but its exact opposite: it's sad, hopeless and gloomy.
It's very well done though, i felt somewhat invested in the characters and I really wanted to see what would happen to them.
I don't feel like giving a higher rating because there were too many thing left basically unexplained, I get that some stuff was meant to be symbolic, but It was unsatisfying.