I've been very pleased with that stove. So far I've only used it sear steaks and burgers to avoid smoking out my house. It could be stronger but it's not bad. Can't comment to run times for sure but it seems like the ones we use at work will go about 4 hours on the same cans...I don't use them as much as I used to so I'm struggling to recall. I've used them for years on omelette stations and for desserts.

I've also used it for cooking eggs while camping. The same cans fit my Iwatani torch, too.