contacted via LinkedIn. two semi technical phone screens followed. travel was required and arranged very promptly -- flexibility and decent arrangements. next day interview consisted of a 8 1:1s with potential peers and management. it lasted about 7 hours and included lunch at the main cafeteria. really know your resume, which is where most technical questions originated from. obsessive brand loyalty is par for the course and is why you're interviewing with them. overall experience was positive and a good barometer of where you are on the totem pole.