The laser is very useful for aligns the cup and set the Guide (the tool can be used with a guide rule if cutting through the board). The fact that the saw is plunging allows placing it on the surface to be cut to position the guides without having to hold it. Unlike most tools of this size, the saw plunges backward; which is much more comfortable in use. The cuts are sharp and blunt. Very easy in the woods until 2cm thick. As a bonus, a storage box very well designed and a carrying bag that can be used in addition. A version of battery would be welcome to litinérance.