Google had a guy take me to lunch as well. I suppose this is part of their process. I was surprised it was a random developer (a quiet, uninterested, also slightly miserable young guy), rather than someone who was otherwise involved in my (potential) recruitment. It seemed like a lost opportunity for them to get to know something about me other than whether I could do simple coding exercises quickly and accurately under pressure without recourse to external resources. (I can, but apparently not quite quickly or accurately enough for them). I was amazed that they were prepared to fly me to another country (NZ to Australia), but at no stage showed the slightest interest in me personally or anything I had ever done. I am 59 years old, I've been working with code since I was 21 and worked out how to program a significant embedded application on an Intel 8085 CPU using nothing but the manufacturer's data sheets and a simple hex keyboard and display breadboard target. I've learned a few useful skills along the way.