The people who work for ServiceNow are amazing. Highly intelligent, hard working, and team supporting. If you need help, they are there for you!
The challenge is this: Billable hours are the mantra in Professional Services. You are constantly pushed to make your billable hours, but you have limited or no control over what is sold. If you are not meeting your billable hours, which varies in requirements from quarter to quarter based on what Sales "says" they are going to close, you are constantly reminded that you have not met your quota.
Though there is never an overt "threat" that you will be let go if you don't meet your hours, there are enough "reminders" that make you feel insecure.
If you are technical at ServiceNow, this is not a problem. There is always more than enough work. If you are non-technical (process, organizational change, governance), this is a constant challenge. ServiceNow, despite individual groups attempts to change the culture, is a "Software House" -- platform is king.