Google Lab Manager interview questions

I got a phone interview to work at Google Project X. Prior to the phone interview, I had really positive thoughts about Google and their special division. After the interview, from talking to the people that worked there, I got the impression that Google Project X is very different from Google proper. Google Project X sounds like a stressful environment with no work life balance. This is scary to me. Maybe it is an occupational hazard of being in the science field, but I am not sure that I would be willing to come to Google X if for all the benefits in the world the environment is stressful.