Everyone knows Logitech - IMHO, they have the best peripherals on the market, they have known their business for more than a dozen years. You hold it in your hand and feel all the quality, you have not regretted a single spent after the purchase. I recommend. Pros: - Sensor (this is one of the best sensors on the market, everything has already been said about it); - Scroll wheel (also a legend from Logitech with an infinite scroll function); - Lots of features to customize your senses right out of the box with profile buttons; - Build quality (no backlashes and gaps); - Trouble-free software; - Excellent form factor for a large hand (mine is happy); - The presence of weights (I use, because I like heavy mice); - Non-marking coating (no fingerprints left); - Beautiful design. Has cons: - Loud wheel (if you do not live in solo, then it can confuse someone at night); - Difficulty in cleaning (dirt clogs into different recesses).