Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Osamu Tezuka's classic manga...

First of all, let me say I love Astro Boy (nee Tetsuwan Atom). The stories are fun, action packed and don't feel "dated" at all considering the material is 30+ years old. If you're looking for a good solid series, a classic manga, or something for your kids you really should give Astro Boy a try...