That's a feature I like about my fitbit, but with the Band requiring a charge every two days could result in sporadic sleep data since most people will charge it as they sleep along with their cell phones. Granted, I charge my phone at work at my desk but taking off and putting on something that is supposed to track your activity could get annoying.
That does sound kinda messy. I think that I'll wait until the Fitbit Surge or Charge HR. Wish they'd gotten their act together well enough to get them out before holidays.