What's it like being a Rail Operator for MARTA and what is required to do so?

I have been curious for over 6 Years what it is like working for the MARTA Subway System. I'm thinking of joining myself but I need to hear it from the employees themselves. What is it like working for the MARTA as a Rail Operator?

Also, I understand I need a CDL but I am in New York, so can I apply with a New York CDL License, or do I have to swap it to the State of Georgia?