Tried two of these, one on each end of an 8 person dinner table and they worked really well.  They are pretty small to store as well. Very easy to light and operate. You just have to be careful when walking around them (just light you would around a fire pit). 
Great if you are trying to have people over outside during the colder months in a life with COVID, since they are small and affordable, yet effective,  so you can get more than one. I’d say you could feel the heat to about 5-6 ft in front of the burner and a little towards the side, and good heat above it. Almost nothing on the back.