Eventually You'll get the ERR of death message...
I purchased mine Oct 10, 2013.  Worked well for quite some time.  I liked the convenience of it syncing to my Fitbit account to help me keep track of progress.  After about two years of use, I noticed it would not always shut off and I was starting to burn thru batteries.  Today after switching batteries I got the dreaded ERR message. Step on, step off, thinking, ERR.  Nothing will correct issue.  Apparently there is an issue with these little plastic clips by each foot that eventually break.  I guess I should consider myself lucky getting getting 3yr 4mo use out of it before it died.  But I will not be running out to drop another $130 on a new one since Fitbit never redesigned this issue and some people have reported only getting a Years use out of it.  Fitbit stands behind their product for only the first 365 days.  Time to go back to a generic digital scale for a lot less money and just manually enter weight into app.
Rating: 2 stars