For anyone still sitting "in process", "in progress", etc., I just had a lovely conversation with someone from admissions who explained a bit of the workflow. Once you're application is complete (secondary, LORs, fee, etc) it is eventually sent to a reviewer (there was no mention of the timeline for this). Once with the reviewer, it takes 6-8 weeks for them to review your file. From there it is put in front a the committee and a decision is made: reject, interview, continue to review. I know the numbers are estimates and not hard-and-fast deadlines, but you should not feel down if you've been "in progress" for a month and not heard anything.
This is everything I was told so if you have questions I doubt I could tell you anything more.