+Quality of the build is very high.
+Great amount of settings that can be set up for it and tweaks.
++Ie Macros etc
+Feels natural to use.
+RGB although setting effects up can be reasonably tiresome.
++High customization of the lights.
-Main downside: For the Corsair Software, HCI is not fully there. It's a good software but the way you interact with it, can be very difficult. (Might improve in future via updates).
-Huge 165+ page manual.
-Arguably logo, although I don't care about it.
I would recommend the mouse, I feel that the quality and performance far outweigh the disadvantages noted.
I give it about 9/10, only let down by the software although it's not too much of a deal breaker imo. (and maybe logo).