Summary: It is getting harder and harder to find "full fledged" wired optical mice these days. Every mouse company is focused fully on wireless which sounds good at first until you take into account: Charging station (or battery change) and the signal interference. And if you are a gamer like me, you hate that tiny bit of lag that at best some times, and at worse all the time is present in wireless mice. So I was glad when I got this mouse.
Summary: I own this mouse and I like it much better than cordless mice I used to own. Its a great option for those considering a wired mouse. Ive been using Intellmouse Explorers since version 2.0 and this one is just as good. The 5 buttons are a timesaver for me cant go back to using mice without the thumb buttons.
Pros: Much lighter than cordless mice, dont have to worry about buying batteries, 5 buttons on the Intellimouse explorers is useful for backward and forward web browsing, great ergonomics
Cons: I dont like the tilt wheel feature very much, not really that useful.
Summary: I just like so much this mouse. It is not wireless, but looks very nice and smooth. It has two extra buttons on left side: one for "Back" button and one for "Magnifying" to make something look bigger, especially good for reading small size text. And it has red light under "Microsoft", I don't know what that is for, but not so bad. Just I would suggest people not to ignore this product and just try to buy, try to use, you really might like it!!
Summary: Let me start out by saying this is the most comfortable mouse I've ever used. But as other reviewers have said, the left button gives out after a certain period of time (anywhere from 6 to 18 months). I'm on my third one, and luckily Microsoft has been very nice about issuing free replacements... the latest one was a few months out of warrantee, but they sent it to me anyway, saying this would be my last free replacement.
Summary: I really like this mouse, better than any other, but they wear out after a year to 18 months. Still I will continue to buy them because they work best for me. Not a big investment considering how much I use it.
Summary: also had a problem with left clicker thanks to the reviewer here i called microsoft and they shipped a replacement Comfort Optical Mouse 3000 with no charge or having to return the mouse. thats customer service!