+: Piezo-electric ignition (no more wet matches or the recalcitrant lighter in windy) Semboîtent the bowls around the gas cartridge (space saving in the bags; simple and effective handle that turn into small bowls pans sockets cartridges (which allow removal once the cold burner)
-: The bowls Aluminium to book to heat the rice cooking water leaves a deposit on the walls (hence the heating canned in a water bath)