I like the Juices, to me they are the new SAKs. Anyway, the S2 is nice, it's real thin and offers the tools you would probibly use everyday. The Juices arn't as strong as the larger Leathermans, but they hold up pretty well and are as reliable as SAK's.
My favorite Juice is the KF4, it's thin enough so you can stick it in the watch pocket of your jeans and forget its there until you need it (It only weighs an ounce more then the S2), yet it has a good selection of tools. It doesn't have scissors, which doesn't bother me because pretty much everything I can do with scissors I can do with the two knife blades on there, one of which being a serrated sheepsfoot blade (good as a seat belt cutter/rescue knife). It also doesn't have a can/bottle opener, bottles though are no big deal to open, you can use the screwdriver and cans are probibly going to be all pull top soon, however if you are worried throw a P-38 in your wallet or on your keychain.