I saw these at Whole Foods and though they were a great idea, so I bought them. I like them. I think they pop popcorn well, at least once you do some trial and error with ingredients and your microwave and the poppers themselves. I like that I can make a single serving of popcorn. The built-in measuring device works pretty well, and it's easy to clean. I like that it's one piece. And although it's not specific to this popper, it's nice to be able to customize your popcorn with any combo of fat (coconut oil! olive oil! butter!) and seasonings (cheese! salt! more butter! spicy stuff!) that you want. However, of the two I bought, the flaps on the orange one don't stay down, and the flaps on the grey one only stay down if I put the "top" flap (the one with the logo on it) on the bottom and put the "bottom" flap on the top. This seems to be some sort of manufacturing defect with either the thickness or width of the "seams" where the flaps fold down. The orange one not working properly is why I took two stars off. If they both worked as well as the grey one, I'd give this product 5 stars. A couple tips: 1) If you find that your popper pops open too soon and starts spewing greasy, molten-hot popcorn kernels over your microwave, dampen a paper towel and put it over the top of the popper before you start the microwave. That way, even if one flap pops open too soon, the paper towel will stop any rogue kernels. This is the only way I've been able to use my orange popper, and frankly, it helps with the grey popper too, just because occasionally kernels pop out of the side vents (also, if you overfill the popper, it contains the overflow.) 2) I think adding oil or butter makes the popcorn taste about 100x better. So yes, you can add oil and it still works just fine. It doesn't take a lot; I think I usually use about half a teaspoon of butter, although I think you could get away with less. 3) Usually I add the kernels and butter/oil, then heat the whole thing up for 20 seconds to melt the butter. Add a seasoning (I mix salt with a turmeric seasoning that's delicious but stains everything yellow -- https://amazon.com/dp/B079W3DLZL/ref=twister_B07D3NZPXG), stir it up, put a paper towel over the top, then back in the microwave for 2 minutes and 30 seconds. At work, I found that the microwave would start burning the popcorn before most of the kernels were popped, so I set that microwave to 90% power. At home, I can use full power. The popcorn is usually done with 30-45 seconds left on the timer, but it's important to listen for it and watch it carefully.
