• Fairly large gaps between the buttons - expanse for dirt and dust.
• Subjectively: the side buttons, although easily recognizable by touch, are made too long. It is not convenient to reach for the rear keys during operation. In my opinion, it would be better to make three rows of buttons in two columns, and not vice versa. It is also not always convenient to reach for the DPI change buttons.
• GHub application. It is slow, confusing and buggy. When I run it, I don't want to look at the latest lighting effects (for a mouse that doesn't have it), I don't need a link to a Logitech site advertising Logitech products, and I have the brains to customize the profiles myself. I need a stable and lightweight program to quickly and easily configure peripherals. And yes, in theory, you can set up profiles once, load them into the mouse's memory, demolish this GHub and forget about it like a nightmare. But then you can also forget about the automatic change of profiles for each active program. (About macros, it seems, too - but this is not accurate).
• The mouse can connect to two computers, but Logitech Flow does not, and will not. The mouse is not friendly with office keyboards of the same company. Would you like to use the drag-and-drop feature between computers? Kindly, buy another mouse from the office line (you can wind them together with electrical tape for convenience), install another program for configuring it in the collection - Logitech options. Even if you already have a Flow-enabled keyboard, this feature won't work without the right mouse. You bought a gaming mouse, right? - so play it and don't whistle. The developers have already been generous to you with macros and built-in memory. With the software, this company has a separate addiction: depending on the gadgets used, Set Point and Logitech Gaming Software may also hang in autoload - there are already four, motherfucking, programs only for the correct operation of peripherals. To marketers, my respect is the ecosystem that we deserve.