Kodak makes the industy's best film. Period. Like the title says, the faster the film, the better the results (for amatures anyway). 400 is the minimum that any amatuer should buy, and generally the results are pretty good. 800 speed is even better, but be prepared to pay more for it. 800 is good for low light and high-speed subjects. However, for most situations, 400 should be fine.