So far I've seen episodes 1-100 so far and I'm absolutely in love with this series. I like all the characters (Kakashi Sensei is my favorite but Jiraiya "Immortal Pervert") isn't too far behind and they all hold a place in my heart (meaning that none of the characters feel like they are just in the show to be a filler in my opinion). The opening and ending themes are awesome and so is all the music composed in the episodes. I've enjoyed all the seasons so far even though a few episodes every once in awhile kinda dragged a little slow for me. This series is about Ninjutsu after all and I knew I would fall for it. This is an excellent series in every manner and I hope to collect several more treasures to add into this collection.