I love it! The App is easy to figure out. I can now track my calories intake and outtake (it adjusts automatically based on exercise level too) and keep my diet on track, not just fitness. The wristband is comfortable. I thought I would feel weird (I have to wear it on my dominant side, since I wear a real watch on the other side). But it is more comfy than I have expected. The HR monitor reminds me to not get too worked up emotionally, as I tend to do (such that my HR is too high at times). I consciously try to calm myself down and walk away or think happy relaxing thoughts (and can see my HR go down).
Hoot Hoot Meow about Fitbit: Health & Fitness