Bests & Worsts Reviews from Amazon

I received all four of these pans on May 1st 2019. Today is may 23rd 2019. The three that are not black in the middle, where off brand super cheap 14.99 for all three. The one in the middle with the black stuff that I can't seem to get off after scrubbing is the item I'm reviewing. I figured I'd buy 3 super cheap pans and then just replace them after the non-stick wore off which I assume would happen within the first six to nine months. What I did not expect was for the crockpot brand cast iron non-stick skillet to no longer be non stick after 3 weeks of use. Literally I think I used this pan 10 times. No I did not use a nonstick cooking spray on it. Extra virgin olive oil or butter. But it really doesn't even matter as even bacon with all of the bacon grease that it creates still stuck to this pan. Definitely not worth purchasing.