Razer Chroma

Its not a referral, is reference, don't worry, you wont get suspended for that, even if some ppl complain, but you can remove all starting from "/ref=....", only the code before ref is important here, so they stop complaining.

The G600 isn't. The Deathadder is the one mouse Razer makes that's actually pretty good.

More buttons, better quality, better software.

The bad thing about the software is, it doesn't changes automatically most of the profiles you set, so you have to minimize game and change manually, or press the button you have at the bottom to change one by one, but this way you cannot see for what profile you are changing to since in full screen mode is impossible to show it. Without the software you cannot adjust do lots of options, and setting some buttons to do something in game option may produce giant delay, specially to F keys, so you have to use the software. Software is getting annoying by the time, not from first weeks, trust me is a pain when you are playing Battlefield or Minecraft Survival Games or Chivalry, and you press a button and it doesn't do what it supposed to, and you die....since when launching game the profile didn't changed automatically.