There were three rounds, one behavioral and two case studies with different people. They were very nice and helpful throughout the process - wanted to see your thought process in every step of the studies.
Interview questions [1]
Question 1
Presented an excel sheet and asked to perform calculations
I applied online. The process took 3 weeks. I interviewed at Wayfair (Boston, MA) in Dec 2016
Interview
The phone screening lasted about 30 min and was mainly about my resume. They asked about the analytical parts of your resume. The second round consisted of a case study (45 min) and a behavior/fit question (45 min). The case study is not a consulting case study, but more like understanding graphs. There were three graphs, each about a brand (coffee maker, coffee filters, something else non-related). The graphs contained sales and price of in 2016. They asked whether the pricing cutting strategy is effective. They gave you an Excel and expect you to conduct basic Excel operation to figure out the answer.
Interview questions [1]
Question 1
Behavior/fit: what do you think is the best and worst price cutting strategy in Black Fridays Sales? What are examples of the incremental costs for a firm?