Very well organized, clear communication chain throughout the interview cycle and interviewers, good prep on who I'd be seeing that day, very professional but tough interviewers. Spoke to about 8 people (turns out I was interviewing for 2 roles in 2 different groups) so there was some mutual confusion.
I was interviewing for a Program Manager role and was surprised by the variety of questioning. I got some programming questions, some design questions, but very very few project management/leadership questions which was a bit odd.
Everyone seemed quite smart (though a bit of arrogance in quite a few people) and engaged in the interview process which is very different than Google where several people on the loop appeared annoyed that they had to conduct an interview.