gets the job done
I lead backpacking treks all summer long in New Mexico, and we always use micropur tablets. Granted we get them for free, so I've never had any inclination to use anything else, but I've gone an entire summer using these on some pretty sketchy water, and I've never gotten sick. Tablets don't break like pumps, they're quick, light, and low maintenance. just fill up your bottle, throw in a tablet, then enjoy 30 minutes later.