I was brought into the process through an external recruiter, who directed me to the requisition. From there, I had 4 interviews (1 phone, 3 video) with various members of the team. These were fairly typical conversations with the exception of one interview which - unannounced - took the form of a role play. I was extended an offer ten calendar days after my final interview.
My problems with the interview process (surprise role play notwithstanding) were two-fold:
1) As I progressed through the interviews, it became clear that the role was exponentially larger and more complex than the requisition and initial conversations made it sound. From the get-go, there was misalignment that didn't reveal itself until my second-to-last interview.
2) It felt as though there was a bait-and-switch with regard to compensation. As part of the HR pre-screen - before I spoke to anyone from the firm - I had to enter a number for desired comp. I had several conversations about my number across the hiring process and was never told it was a non-starter. When I received my offer letter, the base salary was +/-25% below my expected level of compensation (which took into account the scope and scale of responsibilities, as well as cost of living in Austin). I had a follow-on call about this with the hiring manager who informed me that I could make up much of this difference through an annual performance bonus, but that I wouldn't be eligible for that bonus until the end of my first year (based on start date and their fiscal year).
I sent a polite letter declining the offer and then didn't hear back from either the hiring manager OR the HR representative, which struck me as oddly unprofessional and a poor way to end the process.