I sent my resume to Corporate HR, and they responded within 4 weeks with a phone interview, and a subsequent office interview two weeks later. Having reviewed GlassDoor reviews on the position, I knew much about the process going in. The office interview was much as the other reviewers have said. With one exception.
Having had industrial distribution experience in a big company, I was much more prepared for the position to start out minimalist, and only have advancement potential for the stellar employee. I was not disappointed by the process, and the resulting offer was a step up from my previous marketing position, albeit a step down from a previous industrial distribution position.
An important aspect is the recognition that the company values its privacy, and yet plays in a well-known space. You have to really dig to get any information, but it's there. And the other industry players are well-known. Also, the call-center space is fairly uniform, and yet constantly evolving. Better, faster, stronger -- and you have to accept that it's critical to be ready to do the work, yet help the org grow.