So, if you don't know what School Days is... I don't know how to even begin to explain it. It starts with us all being tricked into thinking that it's a normal, slice-of-life/romance animé, but it ends-up taking a turn for the worst. Literally. It's the worst animé I think I've ever seen in my entire life. And that's amazing. So... I don't think that I can write anything else about it, to be honest, not even a brief analysis with my thoughts- mainly because my thoughts are the same as basically everybody else's in regard to this show. My usual blog posts usually include several, well-thought-out paragraphs, plenty of proofreading and editing to ensure that my exact opinion about the entire product and specific segments of the product is shown. With School Days, however... I wasted four hours by binge-watching the entire show, but I'm not entirely certain that I regret it. To be entirely honest, part of me is somewhat glad that I spent all of that time watching this show because the pay-off is much better than what you could have hoped for during the show, but that's purely because of how much you despise Makoto by the end of the last episode. The ending isn't what you'd call a good ending.
So, would I recommend that you watch the show? No. But also, yes. If you have a lot of time that you can happily waste, binge-watch the show. If you're someone who doesn't have much time to sit and watch something, don't waste your time with School Days. There are much better things which you could watch instead.
2/10 and 10/10 simultaneously. 2/10 for the sheer disgust that this show induces. 10/10 for the pay-off at the end. Don't watch it. But... watch it. But don't. But maybe do.