Easy to light, usefully fuel storage,so no waste, the wind shield is, probably, the most efficient I have found. The stove and shield fit into a 420ml mug and with the addition of a collapsible mug, like the Sto Jo, makes for a nice compact brew system. There other lighter less bulky mugs, I know, but I like the Sto Jo. All in all a superbly engineered piece of kit, well worth the investment.
AZ-100 Windproof stand