Can be a very long process. If you are looking for something immediately, may not be worth it. I have heard of people having 7+ rounds. I did not find the process difficult, but it did take much longer than I thought. They also administer a Caliper test, but if you cheat, they won't hire you. A good score is considered important.

Very organized process, a few rounds, got to meet the whole team and got asked interesting questions. Work is great and the team was enthusiastic throughout the entire process. was brought into the office for a final round as well.