The whole interview process went very smoothly. I was referred by a friend already at the company. After the phone interview, I had a coding challenge, which I think is a cool (and more realistic) aspect of the Quantcast interview process that other companies don't have. After a successful coding challenge, I scheduled my on-site interview. The recruiters were very responsive, and worked around my hectic college schedule. At one point, there was a miscommunication and a recruiter schedules a flight a day early. After e-mailing her, she quickly rescheduled without any problems. They also put me up in a sweet hotel, which I managed to check into early before my interviews (to catch a quick nap) The actual interviews were challenging, but all very fair. The interviewers were friendly, and definitely provided me with a good impression of Quantcast. A few days after my on-site, my recruiter called me, and said he would extend the offer, after a background check and an easy negotiation period, I was extended an offer!