I really like this mouse. First off, it has a very good build quality and seems very solid. I like the braided cord, which seems like it would last a bit longer. This is my first Razer mouse, so I'm impressed. I like the side grips which prevent the whole thing from getting slippery, and the buttons and grip are really very well ergonomically designed. Through Razer Synapse, you can easily remap the buttons on the top and sides, and adjust the speed and tracking. The color change ability is very cool (and is a main selling point), and you can get the colors to do a few different things such as solid, pulse, etc. The wheel and logo can even be two different colors if you want. The only problem is the colors are a bit finicky to change, and then when you do settle on a color, the mouse doesn't always display something close to what you picked. It takes some trial and error to get it right, and then sometimes, you don't even get it right. Overall, not bad at all, but Razer needs to improve the Chroma functionality just a bit.