Has anyone used Jawbone "Up"?

There are probably many posts like this, and if so, sorry! I have decided to get something like a Fitbit/Up for Christmas.

My choices were:
Nike Fuelband (syncs with iphone but not MFP)
Adidas watch (SO expensive)
Jawbone up (leaning towards!)
And FitBit.

I really feel like the Jawbone up would be good for me. Anyone had experience with it? I LOVE that it syncs to MFP. Anyone have any issues with syncing?