Bests & Worsts Reviews from Amazon

I've had quite an experience with this mouse. I'll start by saying it's an AWESOME mouse............at first. Right out of the box, it was flawless and super smooth. I had people in FPS games saying things like "when did you get so good????". Problem is, the mouse only works that great for like 2-3 weeks. After that, the sensor becomes insanely inaccurate, erratic and jittery. It's like the quality of the sensor is set to some sort of timer. I've gone through 3 of these mice to come to this conclusion....the first one I ordered on Amazon, replacement sent by Amazon, and one that Logitech sent me free of charge. ALL 3 were great for roughly 2 1/2-3 weeks then gradually became jittery and erratic. Great aim became awful aim. Once a new mouse was sent, it was perfect again until week 3. I couldn't even draw a straight line in MS paint once week 3 hit. I also tried different mouse pads, different pcs and tried cleaning the sensor just for kicks, even though after the 1st RMA I knew it was the mouse and nothing on my end. There's also no actual driver for the mouse, it just uses Windows drivers from 2006. There's Logitech gaming software to customize the light settings and what not, but no actual driver. To see if yours is jittery, switch to 800x600 resolution and move the cursor around. This resolution will give you a real up close view of the mouse. If the movement is anything like mine was, it'll be all jittery, jumpy and erratic. After doing research on this it appears Logitech has a wide spread issue of problems with their mice. I'll continue buying their speakers, and they have some of the best customer support around...but i'll never touch another Logitech mouse ever again. This thing seriously drove me mental.