Well, my DH doesn't eat yoghurt so it's just for me (at this point in time) and yes, I use it about once every 10 days. I prefer natural yoghurt and I use the skim variety which is quite tart but I find it's a nice natural flavour. The greek yoghurt is great too but lots of fat in that one! I've made greek yoghurt to serve instead of cream with dessert. It lasts for about 10 days in the fridge or so (maybe longer but I always eat it before then!)

I have never ever had a batch not work out and it's quite flexible with the amount of time you leave it in the thermos for (between 8-24 hours) so that's handy if you are forgetful or out and about a lot.

It's super easy to clean, you only need hot water for the thermos bit, cold water in the jar and a sachet (which I buy from coles). Easy! If you have yoghurt often, you'll make your money back pretty quickly because store bought yoghurt is pretty dear.