When I've flown, it has been out of Newark where Continental's major hub is located.
I would say the passengers are generally a good crowd. The service was fine. The plane was pretty much on time, and the equipment was newer (737-900) rather than the older planes that I've flown with Delta.
Continental was slightly higher priced than some of the other airlines. I'm not sure it was worth it. Last year they were still serving meals on board for a flight from Newark to Orlando. Not sure if they still do. I think they might offer a service where you pay for your food now.