Instruct: Classify the given Amazon review as either positive or negative.
Query: Great yogurt, like the glass jars.

I've had this yogurt maker for a year now and think it's a great product. I usually make 1-2 batches a week, using yogurt as a starter, and always get great yogurt. My kids devour yogurt, so I figured making my own would save some money - and it does! Sometimes I use greek yogurt, other times Stonyfield. It always comes out delicious, even when I forget I'm making it and leave it on for too long.Very durable. None of the glass cups have broken, though the sides of some lids have split. They still fit tight, just look used. I really like that this machine uses glass cups, instead of other brands that use hard plastic. With all the hoopla around BPA lately, I feel safer using glass.I liked it so much, I bought two more for my sisters as gifts.