I'm about halfway through the series and I'm struggling to find the motivation to finish it. Â I love the story and the characters but all the filler arcs are just grueling to get through. My recommendation to you would be either skip all the filler arcs and just stick to the main story, or read the manga.
edit: And to answer your question, Bleach is really balanced between comedic moments and very serious moments, but still has plenty of both. Also, if you aren't hooked by the main story throughout the first season, then the anime isn't for you.