Review on Logitech G903 LIGHTSPEED Wireless Gaming Mouse with Hero 25K Sensor, PowerPlay Compatibility, 140+ Hour Rechargeable Battery, Lightsync RGB, and 25,600 DPI - Ambidextrous Design at 107G+10G Optional Weight by Pahal Bhatta ᠌

- ON. Logitech is simply not good at software. It seems that customization flexibility has worsened with the transition to G Hub. Added: Logitech is true to itself - the higher the version, the worse the ergonomics of the application. - When it goes to sleep (non-Performance/Productivity mode) - has a delay in being recognized by the driver. During the delay period, the internal configuration of the mouse works (the result is that if a low DPI is set on the internal configuration, the mouse will “wake up” in the literal sense of the word for 1 second). - Ergonomics. Universality (for the right and left hand) made the mouse generally uncomfortable for both left-handers and right-handers: the first pair of additional buttons is pressed with the thumb, the second pair - with the ring finger and (sic!) little finger. The buttons for changing the DPI do not make sense at all: pressing them is possible only if the grip is violated. - Versatility. Logitech does not justify the hopes for the development of the ecosystem that users place. The mouse cannot be paired with the G915 receiver, the G915 cannot be paired with the G903 receiver. I am a laptop and computer user; I would love to stick one whistle into a large computer, and the second into a laptop, and switch my input devices from one machine to another by pressing one button on the keyboard. I am not allowed to do this. - Quality. I don't know if this is a defect, but the middle mouse button (on the scroll wheel) has a completely indistinct click, which _temporarily_ disappears if you click on it several times in a row. Added. Reliability - 1 point. The middle mouse button has acquired a click (on the first or second click it does not register a click, you need to click several times until a mechanical and audible click appears, which characterizes the click). I contacted support. It's sad that's all. Added: They made a replacement under warranty in the Store (foolishly did not press the Manufacturer's Support so that they would replace it).