TechPowerUp posted a review on the Logitech G MX518 (Legendary)
A quote from the article:
Logitech's iconic gaming mouse is back, and it's better than ever! The G MX518 (also known as the MX518 Legendary) features the flagship HERO optical sensor, Omron switches rated for 20 million clicks, an updated, flexible cable, and many great features, and of course all this inside the truly legendary shape that many love to this day.Logitech G MX518 (Legendary) Review