Vantaggi
I joined Rackspace like many other people by relocating. They have really tapped the local community of talent. The one thing I kept asking in the interview was how much people like their jobs. Overall, everyone said they "loved" their job. Once you start, you see that the culture is what attracts people to the company. Very laid back. The CEO even uses a cube, not an office. A couple of times a month there is a kegger party at work or a wine tasting. Very cool!
Svantaggi
There is a lot of "kool-aid" drinking right as you start. You go through a process to convince you how great the company is. The entire time you really never get a sense of what you will be doing day to day, but (as a systems administrator) once you start the job..you quickly realize why there is so much kool-aid drinking. The job for a systems administrator is really a HELP DESK technician. There are times you will try to complete over 100+ help desk tickets. Oh, and you need to answer the phone too. Meanwhile, there is a carrot to promote you to a dedicated systems administrator. This is something everyone wants to do because the trouble ticket load is so high. They can't hire fast enough because the attrition is so high.