Intense! One of the longer interviews I have had, don't be put off by the interview, you're joining the Cambridge Networks family, and they want to make sure you're right for the job.
As I walked through the door, I was welcomed by one of the team, who showed me to the meeting room, and was promptly asked if I wanted a drink, and was made to feel welcome from the start.
I had a telephone interview with the Recruitment agency, followed by a face to face with 2 of the 3 directors, where I was asked to complete a technical test for the level of job I was going for (don't be put off, if you get through this, you will be more than capable of doing the job you are offered.) They then asked me questions about me, what I expect from the job, and my long term prospects.
Note how long my interview process was... although it took 4 weeks, this was a special case as the recruiter put me down for a different job initially, you can realistically look at around 1/2 weeks from application to offer (if you succeed)