We had the stove for 5 days with at Rock am Ring - and he is still alive! Of the 12 gas cartridges we have consumed about 12 whole 3, and with repeated use daily. Only once the shutter has hooked with which one fixes the cartridge. After we had a little handled with the pocket knife and a screw had loosened the whatsoever- was -Why suddenly in the way, we were able to use it on.
Just one more info, you should habn: doses can not be put on the pedestal readily in this stove, as their diameters are too low. So always have a pot while :)