I've got pretty big hands; 8 inches from the base of my palm (where you would imagine your hand ends and wrist begins) to the tip of middle finger.

Picture being able to hit left ctrl + backspace on a normal keyboard with pinky and thumb on the same hand, or Q and P with pinky and pointer on same hand.....

I use and N52TE and I like it, pretty comfy for my ape hands. Not sure if the G13 has as many usable buttons, does it have shift states etc