I didn't like the grid style of the Razr Naga either..... Then I realized that it's MUCH easier to be able to "feel" for which button number you're looking for with an easy visual of the keypad in your head as opposed to trying to memorize the buttons based on rough positioning and size.
Sure the grid layout is kinda boring and it's not the coolest looking of the gaming mice on the planet.... But the layout is SUPER EASY to use. I spent 20 min with the mouse set to "Num Lock" just doing some random calculations to get the "feel" for the key locations. Now I LOVE this mouse!
In the end.... the opponents in the MMO I'm playing don't know how ugly my mouse is... so I don't care... as long as I'm winning!