Impeccable on Windows 7.
Speed on the transfer of 4.5 GB: 6.44 MB / s, very well for USB 2.0.
If you need 16GB to keep in your office, this Sony is perfect for a bargain price.
If it is to carry your data around a hectic life, she will not stand, you need something more robust. The hull is low strength plastic, and then the connector has an actuating mechanism is fragile. Typical design of the first generation USB - except 16GB - which explains the very low price for a Sony (7.50 in 03/2013)
Great for desktop use, in conclusion.
