Great Mouse. I had an original Razer Abyssus that finally gave up the ghost after years of use. I really didn't want to shell out for any of the new Razer mice, so I went on a search and came across this beauty. Was very cautious but other reviews convinced me to try it and I'm very glad I did. I've broken down my review into what I consider to be the most important components for a mouse. COMFORT: I have big hands and the design fits me really well for everyday use and it's still comfortable during long hours of gaming sessions. DPI: The ability to adjust DPI on the fly is very nice and works flawlessly. It was great for games like Diablo, Starcraft, and Heroes of the Storm. It's really nice to let others use my computer and disable DPI for them without having to mess with the settings in the GUI. BUTTONS: All the buttons are very responsive and I've never had a problem with any of them getting stuck. However, anyone looking for an easy to configure macro mouse will run into some issues as there is no clear way to do it like the Razer Synapse client does. At the same time, I don't use macros that often, so there might be a way to do this that I just haven't come across. AESTHETICS: The mouse lighting looks fantastic. My tower is adorned with blue LED fans and such, so everything fits in perfectly. They're a bit bright and I haven't found a way to adjust the brightness, so keep that in mind. GENERAL INFO: If you want a good gaming mouse without breaking the bank, this is a great choice!