I bought Olivio "butter" spray, thinking olive oil, must be a bit healthier. You have to be very careful. I try to use occasionally, that 100 calorie popcorn is just too dry sometimes, you might want to try a few sprays, eat some and then go back and a few sprays, you know what I mean, if you spray 20 times on the first go round, the bottom of the bowl will be dry and you'll want more.
Like any other zero point foods, if you eat more than one serving, you are probably adding up points, you need to do the math and figure out what you're really eating.
good luck