Had an initial interview over the phone. Got called back for an in person interview. The in person interview was 4+ hours long with several panels of current employees. It felt like a revolving door, met more than 20 people while I was there for my first in person interview.

Phone interview, 20 minutes. This was followed by an in person interview with 6 employees including a panel interview with the team of 3 current Product Managers. Was at the corporate office interviewing for 3-4 hours in total.