Junk. A waste of money, strictly for the gullible/flashlight-illiterate public.
FlashlightReviews did give the AIT series decent reviews, but they're the top-of-the-line of this type. Those advertised on TV and in bargain catalogues are junk. Their flaw is the weak battery that usually holds a charge for a few minutes and is so cheaply made it'll soon break under use. Their beams are all weak compared to other low-cost/throw-away lights, too.
If ya really ever need that Shake-light for a lengthy emergency, you'll get terminal elbow bursitis shakin' it to crank out sufficient (marginal) light over time... while looking like the runner-up at an, umm, Self-Abuse contest.
For $10 you can get a neat little Princeton Tec "Attitude" from fellow CPFer Sigman that'll run for days on 4 AAA's and out-shine that Shake-light. For $25-30 there's a bunch of lights (Streamlight, UK, etc.) that'll take AA lithium batteries that last many years if ya just want something to toss in a drawer for emergencies.
Welcome to CPF, Bundyrum!