Mine didn't come with screws, so better make sure when you order. Also note you need very special screws, with essentially no rounded heads, otherwise they stick out a bit and you cannot slide the tray back into the laptop. Can only be used in the smartbay, not external. I'm having a tick problem with cdda2wav, but that could be a software problem as cdda2wav is still in development at the moment. The front cover is a bit flimsy, it keeps falling out by about 1-2 mm on the left end when you move around, a bit scary.
Music CDs work great, independantly of kernel sound support of course.
Nice is the volume control, I missed that on the J30. Volume isn't very loud though, in fact, it's annoyingly low. Microphone is also builtin, right below the mouse buttons, but I didn't get that to work yet. I turned that off to save an IRQ, or even power. Can't get a decent volume out of the soundcard.