Well, if you're now very petty, then it complains about the fact a bit too small and "diffizil" designed and produced cover. This lid / cover to protect the mini-USB port and also serve as an eye for the key fob. For this he is but then probably also suited only in the rarest of cases since 1 much too small and much too fragile 2nd. Can not possibly last very long. And then you have the already very small part (which is actually a plus point would) carry around in your pocket. But quite apart from the part is simply designed very well. Habs tested at 4 different androids (Nexus 4, Galaxy Nexus, Moto X, Wiko Highway) and has at all works without any problems. Seen in that part is just very convenient and of course also works without the indicated and recommended in the operating instructions or on the packaging App. In my case, I use the simple anyway fav of mine. ES Explorer. Have the modem speed is not measured - is not so important to me - can definitely say that this subjective would be worse, at least in any case not with other USB sticks.
So - apart from this bracket definitely highly recommended and practical. Quite simply because the thing works. And unfortunately, this is certainly not self-evident. My previous key has been detected by the Nexus devices, but could not be described. My daughter can not even imagine their smartphone without this stick already :-)