I absolutely loved this show, I've seen reviews of people saying that it doesn't make any sense IT'S FICTION omg it's a tv show about another dimension it's not supposed to be realistic in that sense.
Also if if there was less swearing and gore it could definitely be for most ages (I'm not saying it should have less swearing or less gore idm it at all)
The actors are amazing and you love every character (apart from the ones you're not supposed to love).Steve's redemption is honestly just the best thing ever and his friendship with Dustin