Three round interview. All common white board questions.
They were late in starting my interview, went to a meeting mid interview, then kicked me out early for an all hands. The interviewers didn't seem as good as they pretended to be - by not prepping on their own interview questions they were asking. One interviewer left the interview midway for a meeting and then spent the rest of his interview on his phone. Dude thinks he's a genius when in reality he's socially disconnected from people. So needless to say, I was pissed the rest of the onsite and stopped caring I could fail. I already have a good job, needed interview prep, and was shopping around so it was no big deal to see a rejection from them. However, if I got an offer I would have declined seeing how their management treats interviewees.
If you're looking for a company that is late to interviews, rude to guests, and don't follow up after you fail their onsite - it's a match.