I had 2 phone interviews before I got invited to the Zillow office for an in-person interview. I received an email from the recruiting coordinator with all the details and a couple of informative brochures. My interview was almost 3 hours long, I had 5 thirty minutes interviews with 5 professionals. In overall I had a positive experience. No crazy questions were asked, the conversation was really attached to a role and responsibilities, they wanted to know more about my skills/background and vision. I've had several interviews in the last few months and this one was the most structured and organized so far.