I was an Admissions Advisor who was promoted to Sr. Admissions Advisor.
Pros
Good benefits, you can essentially go to Keller or Devry for free, only having to deal with the tax ramifications. Young workforce. Good foot in the door job to Admissions. If you're using it as a stepping stone into recruiting or other sales jobs though, be prepared to sell the job as a sales job. This is a very big challenge. Most people don't see this as a sales/recruiting job.
Cons
It's a glorified Inside Sales role. Very monotonous, and very standardized. If you've got any ideas of innovating the position, leave those behind. If you have ideas of going from admissions to marketing, accounting, or another department, don't hold your breath. Once you're in Admissions, they see you as Admissions, and for the most part you're staying there. The place is very political, so if you want to move up even just to a Sr. Advisor, be prepared to kiss some low-level management behinds. There are a lot of unhappy Advisors who are stuck there, because they can't transfer this experience anywhere other than Admissions.