You can watch the entire film online if you're willing to download veoh's player. Not me. Never again.
Roger Ebert includes it on his list of "Great Movies" and has a lot of praise for it, including this: "The new Anime Encyclopedia calls it the best Japanese animated film ever made. Whenever I watch it, I smile, and smile, and smile." Moria gives it high marks and calls it "one of Hayao Miyazaki’s best films." The New York Times has a mixed review. Variety doesn't care for it. DecentFilms.com calls it "among the gentlest and most enchanting family films ever made" and says it's
like how childhood memories feel, if you had a happy childhood — wide-eyed and blissful, matter-of-factly magical and entrancingly prosaic, a world with discovery lurking around every corner and an inexhaustible universe in one’s backyard.