Just keep in mind folks that this is purely a reader, no writing capabilities at all, at least from the specs page from Asus. So don't think you can simply replace a DVD burner with this and have it all. Still doesn't seem bad if you need a drive for reading Blu-Ray.
This essentially makes it useless for normal computer usage unless you are just in a HTPC environment (and even then...still pretty useless).
I don't know about you but I haven't burned a DVD for myself in almost a year and that was on my laptop for win7. Hell, neither of my towers even have their optical drives installed right now because I just don't use them enough to bother with it.