I was highly entertained by Bird Box, and Sandra Bullock played her role good and convincing (bullying her seems en vogue to some people) like she did e.g. in Gravity. Her presence was one of the few things that makes Bird Box a better movie than the average one.

Anyway, if you like movies like Blindness (2008), Los últimos días (2013) or e.g. Quiet Place you will like this one too. And honestly, I don't care who is a copy cat of whom (there seem some discussion here) - I am already satisfied and glad if I get served something of some originality in our modern times cursed by pre- and sequels, reboots and rereboots and whatever director's superfinal cut...

Not the most original plot, but a well made flick for the aficionado of post-apocalyptic movies with some decent ideas. Watch, and don't bother with all those rate 1 and 2 reviews.