Once we'd adjusted the sensitivity so the cursor traveled farther with less movement, we found the mouse's optical sensor very accurate and sensitive. We were surprised at how quickly we adapted to the unusual mouse shape. We were also surprised that we used the EM500 Ergonomic Mouse as our primary mouse for nearly a week without pain--quite a feat, considering we've been mousing left-handed for years, and a few hours with a traditional right-handed mouse usually results in a dull ache. Of course, we'd prefer to have a left-handed version, but sadly 3M does not offer one.
The EM500 Ergonomic Mouse is available in two sizes, small/medium and large, to suit different users. Both sizes are widely available at prices as low as $40--a decent price for a comfortable mouse with simple functionality.
