The "coolness" of working for Google had always been marvellous in the eyes of the outsiders.

Even way before the movie "The Internship," working for Google had always been "the" dream job for lots of job seekers.

However, a thread at Quora is heating up the site as current and former Google staff reveal the worst thing about working for Google.

One anonymous poster said that the worst thing about working at Google is that lots are overqualified for their jobs.

"The worst part of working at Google, for many people, is that they're overqualified for their job. Google has a very high hiring bar due to the strength of the brand name, the pay and perks, and the very positive work culture. As a result, they have their pick of bright candidates, even for the most low-level roles. There are students from top 10 colleges who are providing tech support for Google's ads products, or manually taking down flagged content from YouTube, or writing basic code to A|B test the color of a button on a site."

Hence, promotions does not come quickly, work may not be intellectually stimulating to the point of being boring and in spite of having an "awesome day-to-day" life, staff became complacent and do not aspire for career growth.

"The best minds of my generation are thinking about how to make people click ads. That sucks," one poster echoed.

"It was a good 3.5 years. If I stayed, I would have stayed out of convenience rather than challenge and growth," Rich Wan, an entrepreneur wrote.

As for boredom for being overqualified to do mundane tasks, it does not help that Google provides free food. Staff tend to overeat when they get bored.

"It sounds like a first-world problem. But their food. I put on 18 kilos while working at Google. But they also provided access to great gym within the office. One of my colleagues lost 20-30 kilos while I was there. But with so much food around, it was hard to resist and soon I realized that I was eating whenever I was bored or thinking."

Someone who used to work for Google as a software engineer sung the same tune. However, he hinted that Google staff were deliberately complacent as everyone at Google wanted to be cool.

"Delivering quickly and effectively was not on anyone's agenda. In other words, the engineers were pampered and customers were not taken sufficiently seriously. There was no discipline in the offices. People chatted about random things on the emailing lists, often insulting each other. I once emailed a very big team asking a genuine question (as an external customer of their product). The response was sarcastic. If you try to do that at a company like Amazon, you will be immediately reprimanded (or so I think). For me, the work environment could have a little fun but be mostly serious about the work."

And since everybody at Google thinks they are cool, there are those who thinks highly of themselves and demand for annoying entitlements.

As one poster wrote: " In Zurich there is a quiet room where people go to relax, or take a nap. There are very nice looking fish tanks there and you can waste as much of your work time there, watching the fish do fishy things. There was a 100+ emails thread about removing the massage chairs from that room because some people allegedly were being kept from sleeping because the massage chairs were too noisy."

And while others were satisfied working for a tech giant as "giant" as Google, some left the company for not having a major impact and surprisingly, for not having financial upside.

"Things are established: it's hard to have major impact (and impossible to be as influential as early employees were); a lot of my time was spent maintaining things and keeping existing services running, and less time was spend building stuff; as a large, stable company, there is less financial upside: hard work might not pay off (and there is less entrepreneurial spirit in general)."