I like it a lot, and I don't mind it having a tracking item (after all, if it relied solely on visual information it could get lost if something got in between you and it), especially since the tracking item is also the remote control, which tells it what sort of camera angles/movements to take, and to come down.
I just don't like the fact that it has 20 minutes of battery power but takes 2 hours to recharge.
And from what I could understand since it's water-proof and all, you can't swap the batteries over.
It kind of sucks to take it out with you somewhere, like kayaking down a river, or surfing at the beach, or skiing, for it to only be able to catch 20 minutes of film, and then you actually have to go home to do more.
Whereas you could get a GoPro or similar, and catch hours of footage, albeit not from such spectacular views.