The two stars are for Jawbone's packaging and sleek product design.The missing stars are for performance. A friend and I bought the Jawbone together, and both of us are seriously under-whelmed by its "military grade noise shield technology". No wonder armies shoot themselves in the foot.And no, despite the changeable earbuds, neither of us have been able to get a comfortable fit. The loop is so designed that you'll have to keep it in-ear; not very easy to reach for and quickly plug into your ear to answer a call.I won't be buying another one soon.