Very professional recruiting staff. Process for design recruiting is typically:
1. Apply with a compelling portfolio
2. Recruiter screen phone call
3. Hiring manager phone interview - technical + cultural design questions and a portfolio review
4. All day onsite interview - including a portfolio presentation and design exercise presentation to a group, lunch interview with manager, multiple design technical interviews, and a culture interview. Be prepared to spend 4-6 hours during the onsite.
Everyone is very friendly and considerate throughout the entire interview process. I never felt rushed or heavily criticized. Make sure you prepare well in advance and be ready to explain the rationale and impact of all your work.