Excerpt: I've been a loyal Logitech customer for years and have owned more than 10 of their products of the years. I needed a corded mouse that was reliable and wouldn't be too pricey. This mouse is a little on the light side in terms of weight, but otherwise I like it. It has multiple buttons as well as scroll wheel and feels good in hand. Nothing too special, but does the job and I'd recommend it when on sale.
Excerpt: I have larger than average hands and was looking for a mouse that would fit me. The trend seems to be toward smaller mice which leads to hand cramps after several hours of use. The M500 fits me well and all of the buttons are well designed with the exception of the 2 side (back/forward) buttons. It is too easy to click these by accident and get taken to a different screen/form than where you want to be.
Pros: Good Value, Comfortable, adjustable, hyper or normal scroll
Cons: no driver software included, side button placement
Excerpt: This mouse replaced my old scroll mouse that just didn't scroll anymore. The only thing that I had not realized is this mouse needs to be plugged into a USB port and will not work plugged into my mouse port on my computer. After trial and error I finally figured this out, but had to buy another USB extension cable for the new mouse. Once it was connected, I had to download the drivers to get the full functionality of the mouse.
Excerpt: I like that this mouse doesnt need batteries. Also, like the ability to have free scrolling and limited slower scrolling with a click of the button. The back forward is a bit buggy on Mac OS. But maybe I need to check mouse settings.
Pros: Accurate Tracking, Comfortable Design, Fast Response, Glides Smoothly, Great Features, Works On Any Surface
Summary: I owned two of this and I can say that is the only mouse I can use for more than two hours (many times 8 or more). Ergonomics is fantastic, but the wheel suck (too light, and after some time tends to act the switch). I had an MX400 which lasted 5 years, and had no issue at all. Note that the MX400 has the same exact shape of this.
Excerpt: I bought it to edit quicker in FCP and for that it works well. I pretty like the mouse itself, so I'm not gonna talk about that. For all Mac Users: When trying to configure the buttons, I was desperate, not being able to download any content from the logitech site. Thats what bothers me most about the mouse. The solution is to download "USB Overdrive" a (free) software to adjust your mouse to your preferences.