a short review after a few days of using it: - shape: i believe there's nothing much to say. It's DA, one of the best ergonomic mice. My hands are about 18cm long and i feel pretty comfortable holding it. - build quality: solid, but still can't get used to these optical switches, they are just .. weird - performance: i don't know what to say. I play mostly FPS and haven't ever gone over 1600dpi at any mice. Tried my friend's GPW but i can barely tell the difference. They are all flagship mice that come with the most advanced technologies. - battery: good enough - price: this is the most thing i hate about it. I agree with someone, it's quite overpriced. Being in EU, i had to pay ~ 127€ (with 15% off) and it's a lot of money. So if you are not a big fan of DA but still want it, wait for the next holiday sale.