Initially, let me note that its thermal power (1500W) is intended for a room with at least moderate insulation.
Its main advantages are that it operates completely silently, helps reduce humidity (in a closed space), and if the Auto function is selected, it works with temperature target operation.

In simple terms: as it approaches the temperature you have set, it gradually reduces electricity consumption, and vice versa. It may sound a bit complex, but in practice, using this function, it is simple and effective. In a well-insulated room, most of the time it operates at just 30–40% of its nominal consumption. Also, over time, its performance remains unchanged.

I wouldn't bother to write all of the above if I hadn't been truly impressed by its performance.

Not even half a star. Don't waste your money on this brand!! It blocks many times and doesn't heat at all! We took it back to the store where it was bought, they told us it's ok, and the result was the same again..
IT DOES NOT HEAT
I'm returning with an update because the device was replaced by the store with a new one. After a month of operation, everything is fine...

I bought it for my daughter's very small room. It works well so far, but for larger spaces it's not worth it. I tried it in the bedroom, which is 20™, and I will come back with feedback on the consumption.

It was used as a supplementary heating solution for a small room during the hours I sit at the computer. The results were meager as the body heats the space locally, I had to have my feet almost on top of the device to feel satisfied with the warmth, and of course the consumption was relatively high, as it took a while to warm up the room. On the positive side, it is lightweight and easily portable, as it has wheels, but to be warm, you will definitely need good insulation and a second heat source

It is a very good machine IF it withstands the test of time. It is Chinese and unfortunately, the circuit board broke after 10 months. Unfortunately, I got caught in a whirlwind with the dealership and official service, and we all understand what that means...

In a 20sqm space with aluminum windows with good insulation, a low ceiling, I have it as heating for the night.... With the thermostat set at 23 degrees, the temperature ranges from 20 to 23... The thermostat works well without significant fluctuations in temperature... It is also quite quiet without the annoying sound that heaters make when they heat up... the only downside is that the light on the control panel does not turn off...

After 1 winter of use and using it as heating for the children's room at night, I am quite satisfied, the room stayed at 19-20 degrees, the machine was at 22 degrees... the thermostat works very well and the fact that it automatically adjusts the intensity it works at is very good for saving money... I can say that the difference in electricity consumption is acceptable...

Attention those who want to place it on the wall --- Its base on the top side is narrow, resulting in not being able to attach it at least on the right side as we look at it, as the control panel protrudes so much that it touches the wall.

In other words, it does not fit on the wall with the base it has inside.

Furthermore, the official service NEVER responded.

Having read very carefully the comments of many buyers, I bought 2 for a high-ceiling living room of about 30 sqm with an internal staircase. It is quiet but performs well from 23 and above. I don't turn it off at all and at night I set it to 18. It is beautiful and lightweight. I chose a few watts so as not to burden the line. Maybe I should have bought bigger ones. It performs better in combination with a dehumidifier. We will see the consumption in a little while. I hung it on the wall and it looks beautiful. It doesn't bother at all.

Excellent quality and user-friendly product. Low consumption and heats a room and a bathroom totaling 20 sq.m.

Very good!!! They were used in 2 rooms with moderate insulation in Crete with a lot of humidity in the area!!! From early January until around March 10th, they were set at 19°C and we had measured room temperature of 18°C with a thermometer!!! We turned them on from midnight until 7am in the morning!! With the nighttime electricity tariff from 2am onwards, the extra cost for the two months was about 30 euros!!! The air quality and consequently the quality of sleep were much better than before with the air conditioning!!!

It has a bright blue LED screen and unfortunately does not give you the option to turn it off. It also does not offer the option to turn off the sound of the buttons. These 2 features make it quite difficult to use in a child's bedroom.