Sent in application, no Cover Letter included. Had phone screen 2 weeks later. Very tough, had to prepare a case in which the interviewer said the first minute to scrap. Instead, he made a new one up and I had to improvise. Heard about this before, but hopped not to have to experience it first hand... Went horrible (I thought) and I felt very stressed and rushed as he was pushing me quite intense. Thought I would not proceed. Heard back 3 weeks later, I proceeded to onsite interviews. They flew me there, paid for cab, food, flights, everything. Very nice office and interviewers, felt great and had a good feeling walking away. Got a call back 1,5 weeks later, did not proceed due to lack of understanding of AdWords, which I think I understood well enough. Probably was some other reason, like structure of information or communication skills was not good enough. Anyways, a very pleasant interview process, a lot of help and support from HR how to prepare.