Like the growler and how easy it makes carrying the little propane tank. The problem is the tank is incredibly hard to get filled. It seems a common problem that the valve gets stuck and propane won't flow into the tank. I have been advised to slam it down on its base to get valve to open but didn't work. The second time I went to different U-Haul guy he finally got it filled, but t was a pain as had to use short bursts but finally filled. Will be curious when I fill it again if valve is fixed or not. Called Ignix for help and never returned my call.