Satisfactory in terms of intensity for its price, obviously it requires low lighting in the surrounding area but it doesn't need to be pitch dark. The laser, personally, I don't like it and it can be deactivated.
With the app, you have the ability to control and adjust colors, patterns, speed, etc., without it, it's difficult to use. Be careful where you place it because it can blind you. I use it in the living room as a ceiling effect along with other auxiliary lights and it works great. Since I use it with music, I don't have anything negative to comment on regarding noise, something can be heard but it's not very low and you have to pay attention to notice it

The green leiser lighting cypress is perfect. It illuminates 8 meters and reaches a distance of at least 50 meters