This anime is, without question, the most emotionally effective and utterly enthralling anime I have ever seen.
The story and characters, though slow overall, grab your attention and affection and hold it through all 50 episodes. Even if you're not a baseball fan, ESPECIALLY if you're not a baseball fan, you can understand and feel the loss of a loved one and how to carry on their memory through nothing but the interactions of these characters, the words they say to themselves, to each other, and the words they left unsaid entirely. This anime puts you into this corner of their lives and breaks your heart, and you'll love every second of it.
I recommend this to friends, family, and anyone who will listen. 10/10