My friend asked me to go to work in the gold shop! I don't know if you want to go! What are the hidden rules of gold? How is the salary? Is it long to work? Is it so good?

My friend asked me to go to work in the gold shop! I don't know if you want to go! What are the hidden rules of gold? How is the salary? Is it long to work? Is it easy to do? Do you know a little clear opinion? Thank you very much.