The Logitech Performance Mouse MX is highly rated among several top reviewers for its mix of innovation and general-use functionality. Sculpted for right-handed use, it boasts a number of impressive features, including Darkfield tracking, which lets the mouse work on almost any surface, and Unifying technology, which connects up to six Logitech devices to one USB receiver. With the Performance Mouse MX, users can spin freely through long documents and scroll incrementally when navigating slides and images. At PCMag.com, reviewers pan the inconvenient button layout, saying its "odd design requires some adjustment," but at Gizmodo.com it is called "one of the best tracking mice."
In a detailed review, CNET awards the Performance Mouse MX an Editors' Choice award. PCMag.com is impressed with the mouse's tracking laser but not with its button design. And both Macworld and Gizmodo.com find the mouse a pleasure to use.
Impressed with the Performance Mouse MX's Darkfield sensor and Unifying technology, CNET reviewer Rich Brown awards this mouse an Editors' Choice and 4.5 out of 5 stars, saying this high-end device has enough features "to make it a justifiable indulgence for anyone who takes their cursor control seriously." Readers also add their opinions in a related forum.
Review: Logitech Performance Mouse MX, Rich Brown, Aug. 27, 2009
Calling it his mouse of choice for everyday use, reviewer Roman Loyola praises the Performance Mouse MX for its sturdiness and comfort, though he doesn't like the thumb-button location or the fact that the battery drains quickly. He awards 4 out of 5 mice.
Review: Logitech Performance Mouse MX, Roman Loyola, Jan. 29, 2010
Gizmodo.com succinctly evaluates both the Performance Mouse MX and the Logitech Anywhere Mouse MX. While Jason Chen is wowed by the Performance Mouse MX's ability to track on a sliding glass door, he questions design changes that were preferable in earlier models. Still, he considers the Performance Mouse MX "one of the best tracking mice."
Review: Logitech Performance, Anywhere Mouse MX Review, Jason Chen, Aug 19, 2009
While reviews of the Performance Mouse MX are mostly positive, Matthew Murray tempers his praise with sharp criticism of the mouse's design, specifically its less-than-ideal button placement. He awards 3.5 out of 5 stars.
Review: Logitech Performance Mouse MX, Matthew Murray, Sept. 28, 2009
Citing its tracking versatility and Unifying technology, most of the more than 700 reviewers at Amazon.com give the Performance Mouse MX high marks. The mouse earns an overall score of 4 stars out of 5. However, several users say the thumb buttons are inconveniently placed.
Review: Logitech Wireless Performance Mouse MX for PC and Mac, Contributors to Amazon.com