I almost missed out because they typed my email address incorrectly, and they had been trying to contact me for weeks. I had an on-campus interview with some relatively straightforward questions.

I was invited to visit their campus. They had a nice setup with reimbursements, etc., but they booked me the worst flight imaginable (I had to sleep on a bench at O'Hare).

The interview went okay. I had one interview that was good, and I answered questions correctly except for a brain teaser-type question, for which I could only provide a basic answer. Another interviewer and I had a lot of trouble communicating. He saw I had put Java on my resume (which I shouldn't have, given how rusty I was) and kept posing his questions in Java despite my request for C/C++.

The final interview involved a bit manipulation/algorithms question. The interviewer said I had the most concise and efficient answer he'd seen. I also had a nice, long conversation with this individual about the company, its growth, and other matters. He, more than anyone else, made me want to work there.