lots of work, stress, some workers are acting a little too arrogant and look down other new employees.
It's ridiculously hard to get hired at Google. They place a premium value on your pedigree (education, GPA, even outside interests) rather than on your skills and ability to contribute on a practical level. A Stanford grad with a 4.0 GPA doesn't automatically make a better employee than a UC grad. Or even (gasp!) someone without a degree at all.
There's no career path, and no career planning. I never had a good manager, much less a mentor, the entire time I was there. The people who got promoted were the ones who kissed up and knew how to play the game.
Low salaries. I know there are a lot of perks to "make up for it," but I'd rather have the money and decide how to spend it myself. Not being a new grad fresh out of college, I didn't care about the perks.