I was looking for a wireless gaming mouse ever since my last one broke and saw this one was on sale. I had my eye on this one for a while after reading that it had negligible latency (around 3ms) which is important for most gamers. After using it for a solid week, I can say that I haven't had any performance problems. You can download logitech software for the mouse that lets you control it's settings. Just google the name of the mouse and it shouldn't be hard to find. The program is pretty intuitive. It took me only a minute or two to figure out how to use it. It lets you change the LED colors, the DPI settings, the polling rate, etc. It also tells you how much battery life the mouse has. The max is 24 hours, though I haven't tested it to see if that's true. Charging it is pretty straightforward too. Just plug the cable into a USB port and into the mouse. I normally use it plugged in unless I'm traveling or gaming. As for the mouse shape, I would say it's pretty good. It fits my hand reasonably well and I would say my hands are around average for a guy. The hump might be a little higher than a lot of other mice, so if you prefer a flatter mouse or have small hands, I would steer away from this one. The only times I wouldn't recommend this mouse are if you have trouble with mid-sized mice or if you need a battery that lasts longer than 48 hours. But if you're looking for a wireless gaming mouse, I would definitely recommend this one.