Googler here, and can confirm that answer is crap for both my own office and the main campus. There are some people who might work late because they might like to. But I've never a sweatshop pressure here in my 6 years.

It's not a perfect job and in fact I miss working in a place where the velocity is higher. Things in general do not move quickly at Google -- just like other big companies. But it's a job that's entirely compatible with family and a normally balanced life.