Pros: Straightforward, Cheap
Cons: Subpar Drivers, LED Issues
This mouse is OK for left handed and right handed people, unlike the Deathadder. The cord is OK. Seems cheap, a little short for my taste. The rubberized surface does not extend to the side of the mouse, which is a negative point. Scroll wheel is good.
The Abyssus is a no-frills mouse. It's got a good sensor, and it glides very smoothly. No extra buttons. Go with Deathadder for that. You can change the DPI between 450/1800/3200. I would have preferred a 850 option. There is a polling rate switch too. This mouse is best for those that claw grip, or do something somewhere between claw and palm grip. Palm grippers should use Deathadder. Cord is somewhat cheap, and I would have preferred a longer cord. All in all, definitely one of the more solid choices you can make at this price point. ($30)