Hi Tech Legion posted a review on the AZiO GM533U Gaming Mouse

As an older gamer, I still retain older habits even when playing current games. I didn't grow up in the age of mouse macros and billion key keyboards. The most we had were the extravagant MechWarrior battle stations. Just about all of my early game play comprised of standard keyboards and 3 button mice. It wasn't until recently that I started using gaming focused peripherals that feature a more then average amount of inputs. I find that I enjoy gaming mice more then any of the other equipment.

The AZiO Levetron GM533U Gaming Mouse looks to combine comfort and performance. The Levetron GM533U features some essential features that gamers rely on. First, the GM533U allows easy DPI adjustments with a dedicated button. Adjustments are set to 5000, 2000, and 800dpi. Tracking is done with a laser sensor for optimal accuracy. AZiO built in 3 dedicated macro buttons; however, all 9 buttons are fully programmable with the included software. They've also included weight adjustments in 5g increments. AZiO includes a 3 year limited warranty with the GM533U Gaming Mouse.

  AZiO GM533U Gaming Mouse Review