Is CustomEssayMeister Reliable?

I just ordered an essay on custom essay meister, and I am not going to lie I am terrified. My assignment was due on turnitin.com. The thing is, if they send me the essay and they say "we promise we plagiarize check every essay through our system", doesn't that mean turnitin can detect it through its system?

Has anyone used this site and had problems? Anyone have success?

Have i just done the biggest mistake ever, my university is so strict on this

well it had 0% similiarty, i mean is me posting this topic on your forum going to harm me. Can my school see this?

Is the site reliable?