We have had it for about two weeks now. Its use is in the ground floor maisonette and despite the presence of stairs that do not close, the results are very good. The space heats up noticeably and in the low consumption option. The thermostat works much better compared to another heater in the house.

Purchase made on 11-12-23, worked perfectly for 4 hours.
I closed it for the night, the next afternoon I tried to turn it on but it doesn't want to.
It opens for 1 second and then shuts down, without accepting any command afterwards.
I have to plug it into the power and as soon as I unplug it, it does the same thing again, 1 second and shuts down.
Waiting for further developments, I will update....
update 19-12-2023
The store where I bought it told me that out of the 10 they sold, 9 were returned.
Of course, I returned it and bought another heater.

Guys, it's unbelievable.. In a 35sqm room, it reached a temperature of 22 degrees. I had set it on the first level for 2 hours and since then it rarely turns on. And let me tell you, it made the room freezing cold.. I have it permanently turned on. It is very important, it reduced the humidity from 79 to 53 and it stays steady there. Not even the dehumidifier did that

Although it is very early, I want to share my experience because I know how important heating is to us. I have had it for a few days and compared to the previous heater I had, a thermoval brand, and in terms of price, it heats perfectly. I put it in my living room, which is large, high-ceilinged, and poorly insulated, and it made a difference. It emits heat from the front, back, top, and bottom, and it is very lightweight. We will see what happens with the electricity company, but at least this time I bought something that actually works and won't leave me freezing in the snow.

Update... The electricity company pushed it to the limit, but the machine actually worked for many hours. It requires caution in how long you keep it on if you don't want to give away all your money.

Heats up quickly, quietly with just the first level. If I also turn on the second one, it can heat up the adjacent room as well, totaling around 30 square meters. I don't know about the consumption yet, it will show on the bill. For now, I am very satisfied.

I have placed it in the baby's room.. It heats up nicely and relatively quickly in a moderately insulated space.
The thermostat works but it is not precise, so you need to have it set at a higher temperature than what it shows in order to reach the desired temperature, but it's a minor issue.
The controller works fine, overall it is a good construction.
At some point, I will try it in a larger room.
I don't have an opinion yet about the electricity bill, I am waiting for the next bill to come.
Overall, it's a good purchase.