Best popcorn popper ever. Just put kernels in the popper, put a bit of butter on top if desired, and put it in the microwave. Unlike other popcorn poppers and microwave bags, this popper pops the corn up in a way that it is crispy and very enjoyable. It does take longer for me to pop the corn than the booklet indicates - for me, 4 1/2 minutes. But it is great. I bought two more as gifts!