Culture, great managers and owners. It depends what is important to you.
Pay, resources, work hours, lack of bandwidth
I applied through an employee referral. The process took 3 weeks. I interviewed at Discovia (San Francisco, CA) in May 2015.
Challenging but straightforward. Spoke with a consultant over the phone who then asked me to complete a project. Once the project was reviewed I was asked to meet with a managing director. After interviewing with an MD I received an offer.