Purchased on June 22 from a Cosmodata branch.
This particular fan has not stopped making an annoying noise since the first day of use; I hoped it would improve over time, meaning it would settle down during use, but there has been no change, neither worse nor better. Essentially, it is due to its cheap construction that holds the motor to the base with the wall.
The screws it had, I threw away as soon as I saw them and put in my own.

Very powerful and relatively quiet. The screw that holds the motor in the base and the screws for mounting the base on the wall need to be replaced. There are no assembly instructions and the design is for a different fan.

The fan is quite powerful, but not as powerful as a similar one from another company that I purchased in 2021. It was bought in 2022, has been used for 3 months during the summer of '22, and continues to work well since May '23. So far, everything is good, although I would have liked it to be stronger. Time will tell its durability.

1) The hooks inside are for supporting a frame, not a fan. I bought an 8-inch one and installed it.
2) The fan doesn't stay in the desired position, it hangs down a bit when it's running no matter how tightly I tighten the screw. I'm trying to come up with a solution to keep it stable at the height I want.
3) To start the fan, you have to set it to the third speed level for it to have power, and then you can lower it.

In the positives: it is relatively easy to assemble, the remote control works well, and it provides a decent airflow. I have installed it in an outdoor area (terrace) and it does the job.

These are my observations from the two days I have used it.

Very powerful fan that can cover a lot of space. However, I don't think it is a suitable choice for a very small room because even on the first setting, the air it blows is very strong. The noise it makes is not loud for such a powerful motor, I would say it is normal.