I got a Razer Deathadder and when one of the mouse buttons stopped working and I tried to file a warranty claim the process was such a pain in the ass that I quit.

Logitech just had me record a video to verify the problem and then sent me a replacement; I didn't have to return the defective mouse. I'm not sure if that's their policy anymore, but I appreciated it.

Meanwhile, Razer had me record a video first thing, then kept asking me to perform troubleshooting steps that I already told them I'd tried (since they told me to in the support article), and then a couple times closed out my ticket before I took a few days to reply (and after reopening the ticket, they basically wanted to start from the beginning again), and then they wanted me to ship the defective mouse back to them at my own expense, warning that if the mouse was deemed non-defective I would not be receiving the product back or a replacement. After that I complained and they agreed to provide a shipping label, but at that point I was done.

I'm pretty sure that's the goal, make the return process such a hassle that people give up and they don't have to honor their warranty, so they won that battle. Still, I'm never buying another Razer product again.

I did have a string of Logitech mice that had double click problems, which is why I switched to options that had optical switches for a bit. But those had their own issues, so I'm back to using a Logitech 305. If it starts double clicking again, hopefully the warranty process is still painless, and at least if it does break it's pretty cheap to replace.