I have been working at ARRIS full-time (More than 10 years)
Great benefits, most people are pretty easy to get along with. Good work/life balance.
Very focused on commodity hardware so it's not ideal for a software person. There's not enough innovation as most of the technology comes from suppliers.
Advice to Management
Focus more on software and innovation. Eliminate excess 'middle management' and let the engineers have more freedom to push ahead.
I applied through other source. The process took 6 weeks. I interviewed at ARRIS.
Coming from an internal applicant, my experience might be atypical for an external applicant. The process was overall very informal. I submitted my resume and was contacted within a few weeks about an interview. I had one brief meeting (on the phone) discussing the position, what it entails, what technologies are commonly used, etc. I was given a few topics to study up on. The next interview was also fairly informal (phone interview) where I basically discussed my own experiences using Java, different projects that I had done, what technologies I have used. I was asked a few questions about race conditions, multi-threading, and Spring Framework.
Congratulations ARRIS employees http://glassdoor.com/slink.htm?key=vIWlH