I've used a Microsoft Intellimouse for about 10 years but it finally gave up the ghost. I researched and posted in various forums to determine some good mice that were simple, comfortable, had good performance, and weren't LOUD. The Razer DeathAdder Chroma fits all those requirements well. It's good performance, has a smooth scrollwheel, fairly quiet operation, and a thumb button for going back in my browser. I also like the LED color option because, hey, pretty glowy yay!
I guess I can forgive that you need custom drivers to control the color options, but why do I have to SIGN UP FOR AN ONLINE ACCOUNT to download and use the drivers!? Let me say that again in case you missed it: you can't even CHANGE the settings later if you don't log in first.
It's bad enough that they forced me into a relationship with them to download drivers, but to block my access and force me to ask for permission to change from blue to cyan is just creepy. I didn't ask for this. I don't want it. Get out of my life.
I expected better from a company with such a solid reputation. I was able to make it work by using a fake email and information, but I won't be able to change my settings unless I remember my login information later. Good luck if you want to change a setting when you're not in an area with free wifi.
Bottom line, spruce up the guest bedroom because Razer is moving in.
EDIT: I should also point out that the right-click button was broken when it arrived. I gave it a chance because it seemed to resolve itself (still wasn't perfect, but enough that I didn't want to bother sending it back). When I tried playing a game where stealth needed me to hold the right mouse button, it clearly wasn't going to work. I discovered this outside the 30 day window so had to go to Razer for warranty. Luckily they didn't fight me, but add a sour note to an already abusive experience.
Edit 2: I realize I've had this mouse for two years now, but I still have PS2-port mice with balls that work just fine from the 90s. One without moving parts shouldn't have parts falling off of it this soon. All in all, I am more disappointed than I can say and definitely won't be buying from them again if they don't raise their standards significantly.