Was initially a bit skeptical about this one, but decided to give it a try, as it was quite inexpensive. Must say I am positively surprised. It works well, easy to set up and even has a remote (Though the remote has a very short range).
The heater developed a small diesel leak in the tube from the tank to the burner, but technical support from Vevor helped me with what to do to easily fix it myself. Cut hose and reattach in a small clamp.
OK they saved themselves a return, but I got it fixed in a few hours and not a few days (postage there and back + fixing time)
The heater is not the strongest heat source I have encountered, but it does heat and for now just works and work, as long as I put diesel in it :)