Lasted 6 months, replacement one lasted minutes - wireless version.
Jeffrey Reiter, Amazon
8 April 2013
Summary: OK, this is the third ergonomic 3M mouse that I have purchased in the last 10 years. The first two last 3+ years for $45-50. This is the first wireless one I bought and the wireless connetivity went screwy right after the 6-month window. After the 6-month widnow passed I have to constantly reset the connectivity with this mouse - several times a day now. I will go back to the 'wired' version. Warranty of 30 days does not seem adequate here.
Summary: This mouse has never worked properly from day 1. It will connect for 3 minutes then lose connection and I have to keep connecting the USB and pushing connect and after many tries it starts working for a few more minutes. It's sad because the cable version is great and very comfortable. This could just be a dud but I'd go for the cable version unless wireless is crucial for you...
Summary: I was looking for an option to my overused finger clickers, but couldn't get used to the way to move this. I wound up getting a wireless trackball. I'm still looking for other alternatives to mice.
Summary: Unfortunately, the wireless connection was not dependable and it stopped working in less than a year. I may have just been unlucky with this one. I do have a wired one however, so I switched back to it. Never-the-less, I highly recommend this style of mouse; its design is great! It doesn't strain your forearm at all.
Summary: I tried this mouse because I was having wrist pain and thought it might help. After several months using the 3M wireless ergonomic mouse, my wrist pain has eased considerably, but now I have developed pain in the thumb area. My doctor says it is de Quervain tenosynovitis, which is often associated with repeated thumb motion. I have pain and swelling at the base of my thumb.
Summary: The mouse did not work so I had to send it back. So can not review it. I really could use something like this too. This is the type of muse I am looking for. I just could not test this mouse out due to bein broke right out of the box.
Beware of thumb problems! Get Evoluent Vertical Mouse instead.
M. Leonhard, Amazon
9 March 2012
Summary: I got this mouse in 2006 to help with wrist pain. My wrist pain went away for a few months and then came back, accompanied by pain in my thumb. I solved my wrist pain by improving my posture and reducing my time at the computer. I stopped using this mouse after about 6 months, but even after six years the discomfort still occasionally comes back. Now I exclusively use an Evoluent Vertical Mouse 3 . TLDR: Don't buy this 3M mouse because you'll mess up your thumb.
Summary: It had worked fine for the 1st year. Suddenly from the 2nd year, I had to click the mouse very heavily for twice for every click, very annoying and harmful to my fingers. Strongly not recommended.