It's good but not great. Here's the reason why. I have just watched episode 24, kokuhaku. I am beginning to think this anime has some pacing problems. Why did the producer increase the pace so much in just 4 or 5 episodes? Seriously, in one episode, the two main characters went from casual friends to essentially engaged. I think that the producer wanted to emphasize character development more in the first half, but the anime is far too rushed from ep 20 to 24. If they went at the speed of the first 19 episodes, I would expect that there would be a second season to resolve things. But, the producer hurried and essentially cut off the plot.
Nontheless, great storyline, nice cast, great seiyus, they managed to turn the stereotyped shonen romance into something with more drama and less fanservice. If the plot was spread over two seasons, maybe it would have been even better. Probably the best shonen romance in the last few years. This is one reason why I like light novel adaptations over visual novel and manga adaptations, there's more dramatic effects that the producers can take liberty with.
