Simple.  I highly recommend it.
I purchased my Aria from Fitbit over a year ago.  It has been a valued companion.  I love how it automatically uploads to my fitbit app and maintains a complete record separately under its own area in the app.  I don't pay any attention to it's body fat percentage.  i don't know of any scale that ever can have an accurate count on this percentage.  Otherwise it has been fab.  I've only had to change the batteries once.
Rating: 5 stars