I was recruited through a college recruiting event at BYU. The process was fairly informal, but very prompt and the recruiters a pleasure to work with. All of my emails were answered within a day. The interview itself was difficult, but not prohibitively so. Many other interviews I've had with companies that take pride in hiring only "the best and brightest" will ask unfair trivia questions (e.g., the famous light bulb question) or very specific CS theory questions (e.g., "what is the difference between polymorphism and inheritance) that feel very much like a final exam. My interview at Lucid consisted of a programming segment, with four problems increasing in difficulty and a statement that I was expected to solve whichever ones I could. I was able to solve all four, but not with much remaining time. After the programming segment was a modeling question, where they asked me to model a deceptively complex system. I did horribly at first, but with discussion with the interviewers, came to an answer I feel good about. The communication was very open, and I could tell that the interviewers wanted me to succeed.