I love my Kefirko kombucha maker,Using the fermentation clock makes it even easier ,not having to write down when you started your new batch. I would like to say,l did find it a little confusing as there were 2 lots of instructions (kefirko booklet & Noutishme Organics leaflet) with the sugar amounts. So went with booklet instructions. I laminated the leaflets straight away,so l can refer to them ongoing & wipe them clean. But over all very happy,trying new flavours for the double ferment. Thankyou.