I loved these. I used an extra sharp cheese and a nice Honeycrisp apple. I ground up some quinoa in the blender for flour (In retrospect, I should have toasted it first or rinsed it a few more times--there's definitely a grassy taste to it, which two of us liked, and one of us didn't care for). They come out light and fluffy, with a lovely crust of cheese. Only other con: I had a lot of dishes to do once they were in the oven, but I concede that might just be me.
Pros: tastes good, healthy, filling,
Cons: makes a mess, quinoa flour has noticeable taste which isn't for everyone