This hot little japanese product has been popping up at a lot of local import shops and I grabbed one for my lude. Fits perfect and brings the shifter profile down drastically. It's reasonably comfy and looks awesome.
It's definitly of the highest quality and finish. The jewel comes non-attached so you can put it on yourself. My recommendation is that you screw the shift knob on, but leave the jewel off for about a week. Every time you get in the car, tighten the knob a little bit more as it will sort of adapt to the threads over a short time so you'll need to give it a little torque here and there. After a week it should be tight as hell, then just put the jewel in.