Pretty much the same as the anime but with more char. development for the side chars, like some reviewers have said, it kinda stagnates half way,
Shoko confesses her love very early on, but Shoya misunderstands her because she can't pronounce it properly and then she never confesses again, even when given the opportunity to hold hands causally she goes for his sleeve instead, they only hold hands in the very last frame, which is far from clear if their romance is going anywhere or not.
(Not to mention that she tries to kill herself later on, after watching the fireworks, which seemed like a good event, but it is a complex-thoughts-and-feelings kinda manga)
Shoya never says it, even internally, if he likes her or not, not to mention love her, he's just very protective of her, but that could be just guilt for bullying her 5 years earlier.
And they decide to go to universities in different cities, so chances for their romance to bloom is very slim, and them holding hands (not even in a romantic way) is the only hint they give, which is really frustrating. It is supposedly when they are 20 years old though, so I guess they kept in touch.
There are a lot of complex emotions and surplus drama, very frustrating at times, and some choices are not based in reality, they are just there as plot devices, like his
best friends not only ignoring him but turning on him (very brutally) and the reason ? because he mentioned that a few girls in class badmouthed Shoko, which was true, one of which was and is in love with Shoya, he didn't say anything bad about his male friends, so them turning on him because he tried to take a few rando girls down with him (to share the blame), well none of that is believable, and these are max 12 year old kids.
Overall I did enjoy it, even after seeing the anime, but the unrealistic plot devices, annoying characters (Naoka & Miki), stagnating middle and romances, plus no real ending all ended up hurting the end result.
This needs a serious rewrite/rethink, because it could have been so much better.
Thank god we have copyright laws, can you image what would happen is someone fixed the story ?