Pros
This can be a fun place to work. They do a lot of great things with their employees. If you are a high-pressure salesperson, you can make good money working in Ad Sales. You will likely make $24,000 salary in ad sales before commission. They like to change the commission plan a lot so it will probably vary.
Cons
This is very high pressure sales. You are expected to push and annoy the people you are calling to the point that they either purchase or tell you to stop calling them. Then they expect you to start again the next month. Your territory is at the discretion of your manager which also means your goals are at his or her discretion. This can be great if you have a good manager, but it also allows them to push people out if they don't get along. They don't develop their people. You will be locked into your position for a year if you're in sales (only 6 months in non-sales jobs). They routinely lay off people if their performance is mediocre instead of working to develop them or find positions that fit them. The company culture is changing right now from the more relaxed atmosphere that was trying to be in-line with the top software companies like Google to a more traditional corporate culture. Almost all ad sales managers are promoted from within. They typically promote top performers. The problem is that many of these people have no idea how to lead a team. This has and will continue to hurt the company because these managers don't know what they are doing.