I liked the shutdown function when clamping, jamming the disc. It simply turns off the power if the disk is wedged in the material, there is no jerk at the same time. Pros below: It is quite compact, it is convenient to work with one hand, it maintains speed during operation, soft start, shutdown system when jammed, protection against accidental switching on (for example, when the electricity was turned off in the network and turned on again, the angle grinder will no longer work, you need to turn it off with the button and distort plug in the socket), the same thing if you turn on the button on the de-energized angle grinder and plug it into the socket, it will not work. With its cons: Tight power button, with one hand it is very difficult to turn on and fix. Maybe it will develop over time, or I'll get used to it.