I signed up for their mailing list too and got 75 coins. Some of their marketing copy sounds very pushy and hype. They say my investment will get to 500 or 1000 times, which makes it all sounds like a pump and dump scheme to me.
I will never believe someone that tells me I will "definitely" get my investment 500 or 1000 fold back. And none of the company holds any coins? No thanks.
I don't believe that they said investment in ATS will get you a return of 500 or 1000 times. The exact statement is
"While we can only speculate the future value of the ATS tokens, a 500%-1000% increase in value is usually a common among successful ICOs."
The key words here are usually and in successful ICOs.