It's not an interview really, but a series of tests. Approached by a recruiter, had a phone conversation and then an on-site coding test (could also have been done by phone, but I live nearby). After another phone conversation with a recruiter who explained the process, came into their office for another series of four tests - 2 more coding tests, a design question and one with some vague personal questions and YACT (Yet Another Coding Test). Questions are not too difficult, but I'm assuming they expect near-perfect performance (mine was not :) Everyone was very friendly, positive and respectful, so even though I was rejected, all in all a positive experience - as someone often involved in recruiting myself, I think we can all learn a lot from how it's done there, especially when it comes to giving candidates a good feeling, regardless of outcome.