It worked great for my office during the winter. I had it under my feet and it kept me warm just fine. After about 20 minutes, the space was warm too. It has the option to function as a fan. It does a mediocre job though. You have to have it within 20 centimeters to feel anything.

I had a similar one for my storage room and because it burned out and the service will be delayed, I bought this one here because I needed it urgently due to the bad weather. However, this heater has some issues: 1) It only works if the thermostat is slightly below maximum. 2) It emits hot air and warm air alternately several times per minute, and occasionally sparks like a flash. 3) I returned it and I am waiting for a replacement. Maybe it was just my bad luck, I don't know. It's just the worst purchase I have made.

Note: If the second one is good or bad, I will update...
Note 2: The second one did not arrive because it didn't meet my expectations and they fooled me by saying that the technician tested it for two days (I don't believe it) and that it is normal for such issues to occur due to room temperature and dust, and in the end they didn't replace it... Money wasted.
Note 3: I have seen many of these heaters with the exact same issue, and they are indeed defective. It seems like a factory produces them for multiple companies and they just put their own brand on them, and of course, we only pay for that brand, even though the heater costs 3-4 euros where they get it from...