After 40 years, I prefer the brown bin method. Chuck it, it breeds rats, slugs and mice. I buy in well rotten horse manure and my garden seems to respond well. Compost heaps are more trouble than they are worth. I have a clean garden now, full of bees etc, but it took me a long time to realise that some experts do indeed talk rubbish. Gardening should be a joy, never a chore.
The main room in your house...
I feel he hasn't got the right idea as I don't want them as pets but to work for me as the liquid you collect from the bottom tray interests me as a plant food. Perhaps he is more interested in me not spending any more! 

