The response from the keys is amazing... The keys feel super nice to the touch and it's extremely easy to type on.
Not to mention you can have all the lights off in the room and still see the keyboard because all the letters light up from blue led's.
I don't really use the lcd panel to much except with Teamspeak. there are probably some nice addons to use with it however my desk setup more often than not just has me keeping it closed.
All in all, if you can get one and not really have to "pay" for it per say I'd do it.
Yeah i have the schmads thing. I am running that and the clock I feel that the whole LCD is kind of a waste at the moment and that it could do something more....well..... interesting.
I looked at a few of the mods they have at www.g15forums.com and some of them looked really cool. Granted I think the number of things they are monitoring at once is really going to bog down the system but I figure I can give it a try.