At the stick itself it is faultless, the speed is perfectly fine, but me has the U3 software, or its uninstall, causes problems and that's why I had to return the stick. Because the new drive as though there were no problems, that was probably an isolated incident. However, the stick is not nearly as nice as it looks in the picture. The housing is made of very thin, cheap plastic and rattles. That's why I prefer resorted to Cruzer Titanium, which is a few euros more expensive though, but it has a robust and better crafted case. But if on the exterior puts little value and only looks at the actual performance, can be accessed safely.