This is a brilliant piece of tech with a great form factor. I recently purchased this drive to backup my original xbox games and then burn them. I have burned about 5 games and have had no coasters. The only problem I have with this product is the fact that the USB cable is quite short which means the drive has to be extremely close to your laptop or computer. Even with this problem 5/5, great product.
If you using this to burn xbox 360 backups I would advise you also to use verbatim dvd +r dual layer media like this
Verbatim 43666 DVD+R, 8x, 8.5GB, Dual Layer, 10 PackEDIT: It looks like after just one week of use the burner is starting to fail. When i press the eject button it does not do anything. I have used the product about six time in two days, and havent knocked it at all yet the cover does not eject when the button is pressed. The burner still works however it is a tedious process of having to manually open the cover everytime. Im not going to send it back in because I would rather not be without its use for an extended period of time, just to new buyers beware this may not be all it cracked up to be.