I completed two thirty minute phone interviews and was then invited to the final stage of interviewing which included presenting a case study to three employees (and individual interviews with each of these employees). Preparing the case study presentation was pretty time-intensive (more than 10 hours). I received a lot of positive feedback during the presentation and the individual interviews also went reasonably well. And then I never heard back from them! I sent several follow-up emails and did not receive any answers. Extremely unprofessional and rude given how much time they are expecting candidates to invest into the interviewing process.

Had two phone interviews and then an in person interview that lasted about 3 hours. The take home assignment was incredibly long and time consuming- I would have been fine with that if I wasn't already working 80 hours a week. Interview was fine and when they emailed me saying I didn't get the job, all I asked for was feedback... seeing that I spent over 15 hours on phone calls, working on the take home, and interviewing, I thought I deserved a response. But nothing.