I was very afraid to take a symmetrical mouse without trying it on, how many mountain surveyors poured slops on it, which is a very specific model. I have been using it for several months now and every day taking it in my hand I understand how cool it is. I rarely use the side buttons, they are not very convenient to press them "on the go" depends on the length of your palm, the button that presses under the thumb is confidently good, I didn’t find any use for the other three :) (claw grip)