I had three interviews with four different people over the course of several weeks. The first was a screening interview about my experience and skills, the 2nd required me to do a task beforehand and present it and answer questions about it, and the 3rd was more abstract with questions where there was no obvious 'right' answer, just my view on things. After 2 weeks, I finally got an automated generic email from their HR system which read like they were rejecting me simply based on my initial application (i.e. they had 'a high volume of applicants', they were 'moving forward with other candidates', etc.) with no acknowledgement I'd already had three interviews, and no offer of feedback. I was highly disappointed by this, as I feel spending that much time and getting that far into an interview process should elicit a much more personal response.