I was surprised and very pleased when the item arrived three days earlier than estimated. When I first used the yogurt maker, I was excited to open it after the specified 10 hours, however I found it had not fully fermented and was still watery. having said that, in the instruction leaflet, it says to bring the milk to the boil and simmer for seven minutes, I brought it to the boil but forgot to simmer it for the 7 minutes that is recommended. So I will have to try again.