There are arguments both ways to say that GAW is a ponzi. They do have some level of proof that they have recently purchased over 1 PH/s from bitmantech however it is less clear that their scrypt miners are "real"
Plus the fact that they do not allow contract holders to point their mining power to pools of their choice is less then ideal
It wasn't 1 PH but
5.
https://bitcointalk.org/index.php?topic=827552.20You can also find the photos of their scrypt miners, some old ones are in the linked thread.
They are real
