So here's my general thoughts on it (Stuff in brackets like this is stuff i added on to my discord review)

JUST SAYING DON'T READ FURTHER IF YOU HAVEN'T SEEN EPISODE 1 YET, GO SEE IT FIRST THEN COME BACK TRUST ME

I won't lie the plot twist in episode 1 showing what the actual premise is was brilliantly done, honestly all of the psychological horror done in this show is fantastic, especially the stuff regarding yuki's delirium, some of my favorite scenes involved that stuff, also this anime literally almost brought me to tears at the end which isn't something that happens very often. The anime itself is actually a hybrid psychological/zombie horror and slice of life which is pretty cool imo, the characters were all likable and i managed to care about all of them (Yuuri doesn't really get much development actually but I've heard she gets some in the manga which goes past this anime) but regardless the sound design is super good for the most part, especially in the horror situations and it really helped cement the mood (School-Live is also fucking insane when it comes to attention to detail, like looking back at episode 1 for example you'll notice so many signs that you may have missed before that something was really wrong, it's genuinely super cool)

Some negatives

Sadly there is a shower scene or two and also a random pool themed kind of episode, granted the pool one at least kind of makes sense in the plot but still, they are really tame by anime standards however and they've overall pretty small parts of the series so i can look over them and also imo the ending was a bit stupid (i can talk about this in the actual major spoilers section) but it works i guess, I've seen far worse when it comes to endings, also school live can get really weird with how it handles things chronologically, like in the earlier episodes it kinda jumps back and forth is unclear about if what's going on is in the present or the past and as a result can be pretty damn annoying to try and keep up with and finally the two types of anime that it's a hybrid of also kind of clash, like imo a good horror knows when to tone down the horror part a bit, just school live kind of goes back and forth giving some major tonal whiplash (which could suck for some viewers, this could also be seen as a positive as it makes the viewer drop their guard down during the happy fun time scenes but yeah i may of found it a little bit annoying but regardless i very much see the value in the two genres clashing so hard with each other)

Actual spoilers

Spoiler, click to view

I really liked the twist that megu-nee was actually dead the entire time in episode 6, like it actually makes sense and after you realize it you'll look back and see all the subtle hints towards it which is just quite nice, also they never explain why megu-nee knew the zombie outbreak was gonna happen or even why the school was built to be a survival shelter for this type of event, I've heard it's explained in the manga but still it's really fucking annoying that they don't explain in the show. Also the whole "bio weapon" thing was never explained either which is still annoying. Btw this is another show where the dog dies, and finally the ending is yuki going to the school's broadcasting room and telling the zombies to go home and they actually listen like imo that was really fucking dumb and like i thought she was gonna have the intercom make loud noise to draw the zombies away but sure whatever i guess that works (considering the fact that it was stated that the zombies at least retain some of their memories even if they're nothing more that instinct driven beasts now. honestly idk why i forgot to put this in my first draft of this on discord lol)

Overall i'd recommend this show, just it hits best going in 100% blind so if you want the full experience just dive right in, i guess i should just say this show probably isn't for the faint of heart, looks can be deceiving