Since a couple of month I do use the 8W laser (Endurance) and I am satisfied with this product. It engraves any type of wood or other materials and is easy to use for cutting MDF up to 3 or 4 mm. I am using the laser on a Stepcraft CNC machine and made a holder for mounting onto the CNC by 3D printing it myself. I am using the 8Watt laser mostly for cutting wood and cardboard up to 2.5 mm and am happy that I made the decision to buy this machine. Thanks George 😉