machine learning questions will be another case study and codepad interview

This is THE best interviewing experience I've ever had! Everyone I talked to was sharply smart but humbly polite. HR was very efficient and helpful. There are some behavior questions but all are closely to the business (e.g., how do you communicate with audiences from different backgrounds). Most rounds have cases, highly relevant to the team's business and models. For coding I personally think it is not too difficult, but they value how you approach the question/communicate/constantly think about how to improve.