This is a reasonable gaming keyboard for those who don't need the LCD of the G19. With programmable keys, color backlighting, and USB headset emulation, you get a functional gaming keyboard for the money.
As there are plently of reviews about this keyboard's features and strong points, I felt inclined to tell you about the out-of-the-box impression and negative points as well:
I got the G110 to replace my Saitek Eclipse II gaming keyboard, and was very surprised to find that the G110 was not better - my expectations were set high especially as Logitech products usually get very good reviews.
My initial out-of-the-box impression was that the G110 looked cheap and plasticy in comparison to gaming keyboards around the same price bracket.
The G110 is not very solid to hold or type on; I'm not sure it will last me very long knowing that this keyboard will get a lot of hard use during my game playing. It's not that heavy either; so it moves about when I'm typing if the surface is slightly uneven as my desk is.
The G110 keys are compact and close to each together (the added G keys make it worse); it feels cramped and I'm mis-typing a lot as I type this review. I'll probably get used to it.
The G110 key backlighting is not really bright enough; unless you pick a very bright colour like red or your room is very dark.
The G110 keyboard tilt feet are not long enough to raise the back of the keyboard to make much difference to the angle; it feels flat even with the feet down.
The G110 Windows-key disable switch is useful to have but it's very stiff to move; to the point that the effort needed to move the switch makes the keyboard move as well.
I'm sure I'll get used to the G110 eventually.
I've owned my G110 keyboard for over 3 months now. Put a rubberised mat over my glass computer desk to stop the G110 from slipping; it feels very solid now. Over 200 hours of games playing and many more hours of general use. I've got used to it's peculiarities - even the odd layout and added macro keys don't annoy me now. Backlighting is not very bright but it is just about good enough. I didn't bother raising the back of the keyboard - got used to it being flat. I can now say that this is a very good keyboard for gaming - and up my score to 4/5. :)