Inarguably just an excellent anime top to bottom, even I cant meme it up and say its all shit because I didnt get my ship win.
Still, I have some misgivings about the last season which are more meta than anything. As far as in story goes, I just dont like Haruno, which Ive already brought up. The biggest issue is that this season really does suffer from coming so late, since in a vaccum it feel unbalanced. Yuki feels very underrepresented until suddenly its her ending. Taken as a while for SNAFU, not a problem, but S3 is basically Yui city from top to bottom until then, making that feel unearned.
Also, the extended cast. SNAFU had an incredibly one! They show up a lot in the first few episodes.then not. Again, another issue that wouldnt feel off at all if this was out soon after S2. The cast all showing up in the last episode really reinforced that feeling. Thankfully we get tons of Iroha.
I guess my main unspoilery takeaway is this: if youre a fan who was waiting for it to finish before watching, I would highly advise rewatchung the first 2 season if you havent seen them recently, or else this season is going to feel worse than it truly is. Because its TRULY very very good.