Summary: I may, at some point, switch over to a bluetooth wireless mouse, but until then, THIS is the mouse for me. I love the feel under my hand and love all the programmable buttons. I've got one for work and one for home. I wore my home mouse out, after 5 years (the left button didn't click reliably any more) and got this replacement. I actually ordered 2, because I'm afraid I won't be able to find a replacement when I wear another one out.
Summary: I have had this mouse for about two years, and it still works as well as the day I got it. The scroll wheel is smooth, it is comfortable to use, and the mouse fits my hand well. I especially like the two side buttons, which are very convenient. While navigating a website, I can go back to a previous page or forward to the next page with just a single click of the thumb on the side buttons without even moving the mouse. Overall, wonderful mouse.
Summary: I thought I'd write this review as I've now had two of these mice. The good: The design and feel of the mouse are amazing. For me it's just the rite size and shape to make the mouse extremely comfortable to work with. The scroll wheel is nice because it is covered with thicker rubber making it a little wider than some of the scroll wheels I've used and my finger can easily grab and scroll through pages with comfort.
Summary: I would recommend this mouse for people with large hands. It fits and keeps hand relaxed and comfortable. It has fast response and the precision is excellent when used for drawing and graphics. I would highly recommend this mouse.
Summary: This is my second Intellimouse Explorer 4.0 and I wouldn't have gotten it again if it wasn't a great mouse. It's solid and comfortable; decent size, but probably not for people with dainty hands. I can't remember when I bought my first one, but it was at least Fall 2006. About six months ago, I noticed not every click was registering and I would have to click harder or more deliberate sometimes. So it was time for a replacement.
Summary: I was purchasing this as replacement for units that have failed. Reviews have all discussed lack of durability. This particular seller also uses OEM package which further limits warranty from retail pack. Warranty impact was not clear in advertisement but was in shipped package.
Summary: I've had this mouse for a number of years and everything on it still works perfectly. You don't even need the software. It's pretty much plug and play with all the button functionality. The only thing I'd have to say is that over time the rubber on the sides of the mouse started to come off or be easily rubbed off, but I've upgraded like four times over in the past years so this one sits amt my desk at work while the more expensive ones I have like the Logitech MX5500...