We have used this about 5 times now.  We have this on our back patio so it is only protected from the wind by the house and the other 3 sides are exposed to wind.  The temperature outside has been between 45 - 60 F with a slight wind and with the heater turn all the way up we were toasty when we sit pretty close to it, about 4 ft around it.  It looks nice and it take the chill out enough to be able to enjoy being outside.

Pros: Great value, easy to use and looks nice (we got the stainless steel version)
Cons: only thing that could be better is if it blew the heat but it is radiant heat not forced air.