Very easy to handle. The yogurt is delicious and I know what ingredients are contained. I can refine the yogurt to my taste, ect with honey, fruit, syrup, nuts. I've tried several ways of preparation and have come to the conclusion that the yogurt - Prepared for the first production of organic natural yoghurt by Lidl (3.5%) and long-life milk (3.5%) - tastes best and which also has the best consistency. The spare glasses I ordered to always have fresh yogurt in the house. I use now for making the yogurt from a glass of the final production of the new approach. After today, I would have to buy the model with the spare glasses the same because it is more effective.