I've only ran it for a few hours so far and it's pretty quick. I've had no problems so far and it tracks all you progress with a login account.
Unlike these bots that click over and over it can detect when its mined and only clicks once like humans do, it has various modes with one where you can select various ores and it goes for the best ones as soon as they respawn which is awesome, and banks with no problems. It's good for what it is and the price is fantastic.