There were three total interviews including a live design project. The first round was a standard recruiter screen over Google Meets where we went over background/experience, general fit, and details about the team and role.
The second round was in-person at their New York office with one of the Design Leads. We went over my background and experience, I presented a case study from my portfolio, they asked a few questions about the project and outcomes, and I asked some questions about the role, team, and projects. It was overall a positive experience - the design lead was friendly and it felt pretty casual and conversational.
The third round was a 4-hour design challenge. This had the option to be in-person at their office, but I opted to complete it remotely. At the beginning, the design lead gave a brief of the prompt, and then I had a few hours to work on it alone. My prompt was to redesign the UI of one page of a luxury hotel website, but they mentioned that they have a few different ones, including a whiteboarding exercise. At the end of the exercise, the design lead and two other senior/lead members of the design team rejoined the call, and I presented the redesign. They asked a few questions about my design process/decision making, and there was time for a few of my questions for them. I will say I typically do not like to do design challenges/unpaid labor for interviews, especially as it was during working hours and I had to take time off for it. They said I could expect to hear back the next week, and I got an automated rejection 10 days later.
Though my conversations with the team were all positive, it was a little disappointing to invest so much time in the interviews/design challenge and get no feedback.