Positives: data access time, enclosure in good order. Nice design (but light). 3. Securing USB Compatibility data by the Smart Ware software via password. If lost or stolen content can not be read without the said password. Reassuring in case of mobile use. Negatives: tends to heat found in a transfer of more than 20 GB, especially if laid flat because of the shape of the case. Consistent with the overall quality of Western Digital storage solutions.