Is it easy to learn Zoukoun for $110 to apply to projects? Definitely not if you only use the Zoukon User Manual, a booklet written for advanced laser users. Most tutorials on youtube show design applications with $700+ laser levels. How does the $110 zoukon fit in? Zoukon controls consist of buttons for self-leveling, laser beam direction, and weak light (pulse) detection. Operation is intuitive for the heavy user, but the casual user may want to have the manual handy. Accessories include a green marking ruler and black chrome magnetic mount as shown in my photos. For indoor use, Zoukon's bright green laser lines are probably all most DIYers will ever need. At night outdoors, the laser's range extends hundreds of meters - it's basically a light show! During the day outdoors, the visibility of the laser line depends on the sunlight, shadows and the color of the object. For example, a laser line on a brown wall will not be visible in direct sunlight, even if that laser shines from two feet away. The laser line on the red door is faint in daylight shadows, the laser shines at a distance of 12 feet. Twilight lighting with two workers is good timing; The laser is visible from afar and a second operator can speed up marking measurements before dark. Levels above $700 have a hand held remote detector to detect low level laser light. According to Zokon's instructions, his laser will flash 5 times in "pulse mode" and then the detector can detect its faint light. I didn't see five flashes and the detector wasn't installed. I later learned that Zokon was selling the detector for $70. And the manual doesn't mention where to buy extra goggles for detecting low-level laser radiation. All in all, despite the lousy instruction manual, the Zoukoun can be a valuable addition for anyone looking to use a laser primarily indoors. For $600 less, I can live with it without a detector or special goggles.