White Album 2 is definitely one of the most unique romance shows I've ever watched.
Just to reduce any confusion, you can watch White Album 2 from the start (it's not a season 2) , it's not completely related to the White Album.
Story:
Haruki, Kazusa and Setsuna performing at the school stage and the problems later in the story. This is not a spoiler since it's shown at the first scene. However, the story involves Haruki's journey in saving the light music club and the hardships involved in it. The story is definitely confusing as it is not fully set in chronological order.
Animation:
While the animation is not perfect, it done pretty well.
Characters:
The characters mainly focus in development and the flaws when it comes to romance, the communications involved in it and the result of it. A lot of the times, it's hard to watch the characters.
Overall, I didn't explain much since I don't want to spoil anything if you are considering seeing this piece. This approach is much different than what we see in many modern romance anime and I'm all for it. However, this series may result in viewers having a sorrow feeling which is why it's hard to recommend to people who are looking for a more joyful watch.
9/10