I LOVE my groove to death... after a few weeks of use, it's worn in nicely. It is (short of the JYD II) the SMOOTHEST opening knife I own. (I have no idea why the JYD is so smooth... it's such a heavy blade... maybe how the stop pin is set up? I dunno...) I love it, perhaps my favorite Kershaw... of course thats like picking your favorite kid, isn't it?
I think I'll get an all-black Tanto Groove some time in the future. For now, i just have the regular model.
things about this knife:
-Very wide spine. Very beefy blade even with those weird Grooves cut in it. Feels rock solid.
-Flipper works perfectly once the washers have been worn in (or sanded then worn in, as i do). This knife, you don't even need to flick your wrist to open it, once you get your technique down.
-Clip is great. Convert it to tip-up, it works so much better!
-Feels great in the hand. Really does. The flipper becomes a nice finger guard when open, there are some phat choils for your fingaz, just feels "natural"... and the funky G10 scales provide a lot of grip.
-despite having a lot of parts, the groove is a CINCH to take apart, clean and reassemble
-Get one!!
-James
edit: Here's what a Groove looks like