Summary: I would highly recommend this mouse for anyone looking at an ergonomic alternative. Plug it in and works right away. Only downside is that after 2 years it started reading single clicks like double clicks. So I had to buy another one. So it may not last as long as a traditional mouse. Bottom line, this mouse is way easier on the hands. I experienced significantly less pain and would highly recommend it to anyone with hand pain.
Summary: Although I don't suffer from carpal tunnel, my elbow can sometimes get sore when I pull crazy hours at the computer since my job requires me to use the mouse in excess and mostly for fine operations. I got this mouse to try and alleviate that problem somewhat. In that, it's successful. it changes the position of your hand and arm to a more natural one, and lets you use your forearm for movement without stress on your wrist.
Summary: I purchased one for work and after a year or so I had to have one for home. I knit all the time and want to take care of my hands. Make sure you get the right size. I had the large one for a short time and the reach for the thumb was not natural. Otherwise once you get used to clicking the correct side of the button it is smooth and I have very little hand fatigue.
Summary: I love this product. I only have a couple of suggestions for 3M. I have such a hard time with a mouse. I have early CT in my wrist but my job is on the computer. I also have very small hands. I got the smallest one they offered though it is still a bit too big. I also thought it would move like a joy stick instead of a mouse. I wish the base pad were thinner. Those are the only negatives I have to say,
It is a wonderful piece of ergodynamics.
Summary: I have a evoluent vertical mouse which I love because it gave me immediate relief from RSI symptoms. But I thought i'd give this a try after finding the scroll wheel causes me discomfort. This shape is weird and the scroll takes some getting used to but totally worth the trouble. Love that its so lightweight but it doesn't travel well. Broke mine before the first month was up by taking it on a trip to NYC.
Good Product, but there are other alternatives or ideas out there
Christopher Lee "Chris", Amazon
26 March 2007
Summary: I was looking for a ergonomic mouse that would help me use less of my fingers to avoid that dreaded clicking. This is a pretty good mouse, since you use your thumb. Used this product for a year, and it helped my fingers heal. Though, since my fingers were always in that grip mode, I felt my fingers get a little sore and eventually went back to a normal mouse. However, I am very glad to have used this product.
"Double-click" problem apparently resolved as of January
MBN Central, Amazon
23 May 2006
Summary: My birthday mouse from last August (which really is as nice on your hands as others suggest) developed the dreaded double-click problem (where all single clicks start to register double) a week or so back. One phone call to 800-332-7483 later, and I have a replacement and an assurance that the problem is fixed as of January (and hey, my two-year warranty should run a while yet). It really does click differently now. Clickier.
Summary: The 3m Ergo mouse is the best mouse for ergonomics on the market. The picture is misleading though. I thought that perhaps it was some sort of joystick type of mouse (which would still require moving the wrist, which wouldn't help really). It is one solid piece that does NOT move at all. The picture also hides the fact that it has 3 buttons, a left click (on top for the thumb), a right click (also on top), and one on the side (not shown) for the other fingers.
Summary: It's true, if you use this mouse for many hours a day then they have about 3 or 4 months of life - they start to double click like crazy, so you have to throw it out. I'm on my 3rd one, but it has allowed me to get my work done without pain. This seems like a small price to pay to reduce pain and allow me to keep working. I just purchased 3 of them so that I have about a 1 year supply.