Very long draw out process, one on one via phone with hiring manager, then face to face with hiring manager, then a 5 person individual one on one via phone interview. The actual offer was very long to get a commitment if they were moving forward with an offer.

Pretty easy. They want to make sure you are using Sandler Sales techniques to find out customer's "pain points". This is the most important piece of advice for the interview. They want the customer to talk and for you to listen.