This mouse stopped working one week after I bought it. It started to skip and become completely unresponsive, particularly with the scroll wheel. After trying various troubleshooting methods, I decided I must have received a faulty mouse and went through the incredibly confusing and stupid warranty replacement process.
After finally figuring out how to submit a request for a warranty replacement, I received an email from support about a week later saying I would receive a replacement in the mail and didn't need to mail back my old mouse.
About one week after that, I received another email from support stating that the information in the first message was incorrect, and I would in fact have to send back the old mouse so it could be "investigated" and then they would determine if I was eligible for a replacement. They said they would send me a shipping label via email. Still haven't received a shipping label.
So now it's 2 weeks later and I'm still stuck with a broken mouse and I'm no closer to getting a replacement thanks to Logitech's dreadful customer support. Do not buy this mouse.