I wouldn't say it's very good, it heats up quite a bit so I don't leave it on for too long.
The projector is very bright, you can even see the designs on the ceiling during the day, so it didn't work for us at night. Also, the lights in all colors are quite intense.
It would be ideal if it had a remote control, like lamps with different colors that are available and you can flash them in any color and intensity you want.
Also, it needs to be in the middle of the room, otherwise the designs go more towards the wall. I put a book underneath it to give it a slight tilt so that the designs only appear well on the ceiling.

It served us incredibly well as it discreetly illuminates the entire room. It lights up just enough for you to navigate the room at night. It has many colors and a cheerful design! Perfect for a child's room.

We have it for a year. It is a high-quality product, perfect in terms of programs and colors, and it withstands falls.

The image projected on the ceiling is nice and clear. It's not something significant for us, but it's great for the kids. I used to put it on for my little one (1.5 years old) to calm her down when I put her to bed (which she obviously didn't want). I think it helped in general. At first, she would look at it and ask for it, but after a few days, she got bored of it. The light is generally quite bright for the night. If you want something that shines all night for the children's room, choose something else. I would completely turn it off when she fell asleep. Unfortunately, it only works with electricity and doesn't have batteries. It's okay to use it for 5-10 minutes to entertain the little one.