I'm in the early stages of setting up some warre hives but have zero interest in the warre method which, speculation here, is probably the main problem. As others have said, it's what's in the box that gets the honey not the box itself although yet again, I'll qualify this by saying I don't know for sure but do expect that there may be some reduction in harvest as compared to our main hives, I'm not sure why I'm thinking this so I'll call it 'gut instinct'. I've still got lots of questions which will take a couple of years to work through.