My kombucha always comes out perfectly by following their specific and clear instructions. The thermometer strip is wonderful, and I really like how this kit provides a lot of tea, a lot of tea bags, and a lot of pH strips. Other kits on the market market only provide a little bit to get you started, but this one gets you started and keeps you goin for many, many batches. Sure, it doesn't provide the jar or covering, but it was incredibly easy to empty (and thoroughly sanitize!) a big pickle jar, buy some coffee filters, and pull a rubber band out of the junk drawer. Definitely highly recommend this starter kit and the thorough helpfulness of the website in general too.