I enjoyed watching each mystery solved bring catharsis to a pre-existing trauma for a supporting character. The playful rivalry between childhood friends Haruta and Chika is entertaining and smartly written. The romantic rivalry for the teacher is handled carefully with a sense of innocence that allows it to avoid becoming gross. The Japanese voice actors perform some lines in english that come across more believable than most examples of english dialogue in JP dubs. The animation itself was above average, particularly the character expression and the emotional beats of the directing.
There could have been more focus on the music performed throughout the show considering the setting of a school brass band club.