These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Awesome Music: A lot of people cite the opening theme as Masato Shimon's best work. Easy to see why, with the electric guitar in the background of the chorus and the great falsetto backing vocals.
Tear Jerker: The ending. Also, the song "Depths of the Blue Earth."