I have a G15 and i hate the space bar :/ It does have keylock but only if you press all 3 arrow keys lol, never bothered me.
I have to say though, it's a durable mother f@#!er. I had a leak in my house one night. I left some computer shit directly under where it leaked, the G15 was there too. I picked it up and water literally POURED out of the sides of it. I assumed it was f@#!ed so used it to help deflect some water out the window. It must have been getting drenched for 8+ hours. I let it dry for a few days, plugged it in and everything worked perfectly, including the little screen!!!
I was amazed. 10 for durability, 1 for space bar sux.