Pros
You'll have a chance to learn about online advertising. As rough as the company can be, this is it's saving grace. If you can survive here for a year, it will allow you to start a career in digital marketing.
Cons
In terms of work life balance, you'll have none. There is almost no training, and it's almost better to learn on your than ask your manager for advice. Overall the understanding of digital environment is pretty low, and it can be very difficult to get anything done simple because there are many forms you need to fill out. If you join, only think of this as a stop in your career where you learn about "digital advertising" rather than a place to grow your career.