Bought when it was 1st released... Great I thought, can view stats whilst playing games. But Big Problem, this Keyboard Lags! Hit a key and it repeats by itself. Sometimes even blue screening the PC.
I'm on my second G19 now and Logitech have not been able to find a solution. So I've had a G19 paperweight for 6 months.
If you run Sli then I'd avoid this keyboard like the plague.
Check out Logitech's own forum to see people upset with this keyboard.
I cant post a link so just google: Logitech forum G19 key buffer