This USB 3.0 drive is successful, we can not blame him. By cons, since 2012 and to meet the "standard Windows 8", the key is no longer seen by the OS as a removable disk, but as a fixed disk. In 90% of cases, nothing will change for the user. Where this specificity asked me problem is that some tools for transforming the key bootable (to install an OS for example) do not detect. We can usually work around the problem within the tool to display all the records, but all the tools do not allow.
So you must select the key keeping in mind these constraints and whether this will be a problem for you or not. As stated earlier comments, apart from that annoying detail, the performance is the appointment and performance / capacity / price quite interesting.