Informal behavioral screen, technical phone screen or two, on-sites with 4 technical interviews and 1 behavioral interview. Throughout the entire process, I felt the people involved were very friendly and knowledgable. The questions asked were not simple, but the focus of the interviews was less on coding details and more on big picture understanding and algorithm design.

The first step was an online phone screen. The person I talked to was super nice, the coding section was pretty easy and I had a good time. Then I went on-site for the rest of the interview. Full day, six or so people. I totally choked on the first question, every though it was super easy (nerves, I suppose) and one later one didn't go well, but overall I felt good about the day. They even brought in a VP that wasn't on my original schedule, which I usually think of as a good sign. So when I left, I felt pretty good about it. They said they'd get back to me by the end of the week. (this was a wednesday) I didn't hear anything, so the following Wednesday I called the recruiter to ask how things were going. "Oh, sorry, they decided last week not to make you an offer. I forgot to call you." Seriously? Super unprofessional. If that's what the company is like, I don't want to be anywhere near it.