I've had the Jawbone UP for a few months now and have been quite impressed. I got it on sale as I didn't want to spend a ton of money on something I wasn't sure I would stick with, but it has been very good and provides added motivation for me to get out and get moving. The App is fairly easy to use and syncs up with my Sparkpeople account. I don't use the food or water tracker on the app as I don't like the setup of that nearly as much, but the app lets me see how much sleep I supposedly had (although this is not 100% accurate because it only tracks movement while sleeping so it might say you were sleeping when you were lying awake and not moving around and might say you were awake when you were sleeping, but moving around while you sleep). It also tracks my steps, which motivates me to get out and walk more, and can be used to track timed workouts. The app tries to give you mini challenges to get you motivated. Overall it is a good basic tracker, not overly advanced, but good for a beginner fitness tracker.