I got my first one in Feb or March as half cool tech gadget and half reminder/motivator. It is what you make of it though, I started take the long way places walking and using the stairs and etc. I didn't use it really to give me extra calories to eat(maybe a handful of times after really good days), I stuck with MFP rec calories most the time. That being said though, I started this year a fattie when I got it and I could see the fat logic of buying this gadget to lose weight. If you get it and change nothing about your habits then you just fat logiced your way to buying it. I started running in June and loved the timer and step tracker for the runs. I don't run with music of phone or anything so I just picked up a used Surge(has a heart rate monitor and built-in GPS) to track my runs.