alaTest has collected and analyzed 545 user reviews of Anker® 2.4G Wireless Vertical Ergonomic Optical Mouse, 800 / 1200 /1600DPI, 5 Buttons - Black from Amazon.com. The average user rating for this product is 4.4/5, compared to an average user rating of 4.1/5 for other products in the same category on Amazon.com. Reviewers are impressed by the durability and reliability. The design and price are also mentioned favorably. Many are critical about the size.