I bought this Asus CD/DVD drive to use with my netbook which does not have one inbuilt and am very happy I've made the purchase.
The drive stands out from its competitors visually. The black gloss finish looks very professional and when there is so little to distinguish between the various types, it does make a difference. Moreover, the design of the drive allows it to stand vertically on a special stand that comes in the box. This allows you to use the drive in cramped spaces, on desks with little space around or on the train/airplane.
Performance-wise this is on par with any other good quality CD drive and the dual cord USB connector is easy to work. One of the two USB cords powers the drive while the other transfers information. One of the disadvantages of this model is the fact that the two USB cords have a very short lead between them. This means that you have to have two USB ports in very close proximity or you won't be able to work the drive through your netbook.
All in all, I couldn't recommend this CD/DVD drive highly enough.