Overall great experience - the prep is fantastic, and will help you with any technical or business interview you have with tech - helped me get my job at another big tech company! One interesting thing: they were sticklers on getting my work on the case study. I heard from my mentor that Wall St. firms used to open up interviews and have interviewees work on real problems in return for a chance to interview - that work was used as free consulting work for the Ivy-League and consulting folks there that didn't know what they were doing - they hardly every hired from that pool - and that's what a few of the interviews felt like...