I've spent a fortune on mice in the last few years. They've all sucked. My hands require a nice chunk in them - I'm using a R69 jobbie I bought 3 years ago & it knocks the socks off anything else I've tried.
That looks like it could have the right dims for me. Button positioning is extremely important because I really don't want to have to dislodge my thumb to get to the side buttons. I'm interested to hear what you have to say.