Because the main selling point of this USB key from oversupply, of course, a strong argument. A greater pain than a thumbnail and two and a half shorter than the key "standard" I used previously, it is ideal for use with a mobile device, including a laptop. Stuck in it, it is forgotten ... maybe even a little too much! (We would have liked a small light that glows when connected but it is undoubtedly technically difficult given the size of the article) But, really, forget it is not too serious since the key is so slender that it has all the chances to find its place in a computer bag while remaining stuck in its housing. Similarly, the risk of bending or damaging the key carrying the PC are greatly limited.
Transfer speed side, it seems very swift (10 minutes to transfer a 2.5GB video file against 6 minutes 30 with my other key, the latter is certainly more expensive ...) but it is not necessarily a criterion important to me. The radius of regret, rather I would cite the lack of a cord, the more useful this tiny key that is easy to misplace. Two small holes already drilled in the plastic nevertheless allow ourselves to remedy this oversight, at the cost of some effort, miniaturization oblige!