Summary: I have this mouse for about a year now. I bought it for the features; numerous buttons, fast scroll wheel and a comfortable grip. The good: While on some websites it is advertised as having 5 buttons (more or less accurate in general), with software installed that could potentially be increased to 7 as the horizontal scroll buttons could be assigned for different tasks.
Summary: I have purchased this mouse twice in the past year. The scroll wheel is really nice and I like being able to toggle the super fast scrolling. When it's working, I love this mouse. The problem I've had with both of my purchases is that the left click wears out too quickly. My mouse now double clicks, unclicks while I'm holding it down and sometimes doesn't click at all.
Summary: I love wired mice, you do not have to deal with batteries. That is the reason I went with the M500. I also have the wireless M505 which is a good mouse, but because it is wireless I don't use it anymore. This mouse is okay, but it can be so much better. Logitech, PLEASE PLEASE make it a heavier (or weight adjustable) as it feels very cheap and light. The tracking seems to be okay, but compared to my old optical mouse, this one actually seems a little worse.
Summary: It's not a bad mouse. It's perfectly usable for normal works and also sufficient for gaming, but there's one major flaw: the mousewheel. Free wheel may sound useful, but the mouse wheel is also inaccurate. Mouse wheel clicks don't always respond and need more force (compared to other mice) which makes browsing less comfortable. Additionally, you probably won't need that feature too often.
A big, noisy mouse, but cool when settings edited.
30 October 2010
Summary: As I got it, it looked pretty big to me. When I click or use middle click, it is noisy; the middle click is a little bit firm to push, and the scrolling wheel is pretty much noisy too. But after I activated the Hyper-fast scrolling, which was my favorite feature, the noise was gone, and I think I leave it this way.Overall, I did not like the ergonomic design and its size; however, it has some good features such as side keys, which I could change their job by installing...
Summary: Originally, I bought the Anywhere MX, which I still think is outstanding. So, for the office, I bought the M500, which has many of the same features in a corded interface. Still love the free-wheeling scroll wheel, but, after a few months, the mouse sensitivity has seriously declined. Now, if I don't have it on a specific mouse pad, it doesn't track.