I really like the concept, the interface isnt bad either. Would be nice if everything were built into the app rather than linked into a browser.
That said, the algorithms used are weak, consistency in tracking and proper reporting even weaker than that. A lot of work needs to be done for this app to really take off, current state is beyond frustrating when truly trying to track your activity and even more so when trying to track your sleep. Hope to see updates ASAP.
Pete0041 about LetsMuv for Pebble