Yes, there is no 30 dollars an hour - they flat out like and have to tell you later it's 13-18 (more like 13-15). They also make you do another demo with really silly feedback, sent in a supremely condescending and negative email, in order to lower your pay expectstions further.

Some of the employees are nice, but the managers are rude and sarcastic.

Whether they are a scam, or not, really depends on your definition, I think they actually have students in the end.