I gave money, but the rodent suits in all respects and is completely maintainable. Or you can put in a new sensor. In a matter of seconds. Pros: Modular design. I can replace the same sensor at any time. For more advanced. OLED display on the side of the mouse. Instant notifications. Customizable. Tactile feedback. With the loss of health, the rollback of opportunities. SteelSeries Engine - software for settings. Its cons: Display on the side. Getting used to the display took about a week.