Summary: This mouse has been great. The on the fly sensitivity changes are great and easy to use. The options are easy to adjust from the mouse's set-up. So far my only issue and its very minor is that if you are frantically clicking the left button occasionally it will squeak, but its hardly noticeable.
Summary: Looking for a good alternative to the Razer mice without emptying your wallet? Here it is. I play PC games casually, nothing too intense. I wanted something between the $150, 40-button super gaming mice and the $5 wireless laptop mice. I was minutes from buying the Razer Deathadder for over $50 when I found the Sidewinder X5. Cheaper and has more features.
Summary: purchased this mouse as a replacement for another microsoft mouse i had that quit on me. strangely later i hooked old mouse to laptop and it worked. o well. do like the sidewinder not quite as comfortable but not uncomfortable to use. do like the added buttons and speed adjustment for it. everybody that used my old mouse complained on how i had it set for. told them it was set the way i like it and if they werent so sketchy they could control its movement. lol.
Summary: This mouse is decent. I enjoy the fact that I can change the sensitivity on the fly with the buttons on the top, and it is a very robust mouse that serves your needs. I use it for gaming as well as every day things like web browsing and work. Since the mouse is marketed primarily with the buttons that change the sensitivity, I'd say this is an excellent buy if that is what you are looking for.
Summary: It's a big mouse and certainly can look intimidating - not so much as other gaming mice though - but is comfortable to use claw or palm styles for long periods. My only gripe about the physical layout is that, from what I can tell, the weight isn't adjustable. But it's relatively lightweight for its size, and honestly I doubt I'd change it much even if I could.
Summary: This is a great mouse, even though you can't make your own sensitivity like a lot of logitech mice you don't really need to because the sensitivity is already greatly set. First button is 2000dpi and 2nd is 800dpi and 3rd is 400dpi. It's very cool with the back having 2 red lights coming out but isn't really needed except for style.