Pros
I'm writing this having worked 22 hours straight a few weeks ago. Then consistently having worked around 10-12 hours a day since. There really isn't much positive to say at this point.
Cons
The hours are ludicrous. For a company that experiences such phenomenal growth each year (just read the marketing blurbs). Why hasn't the Engineering Services team grown linearly? It's because this company is great, only for those few elite at the top. Pretty much everyone else feels rubbish the whole time. The only talk I hear is 'grumble grumble grumble'. My advice; if you're a wide eyed graduate, steer clear and either join a bank where you'll work similar hours but be paid double. Or join a company that's got actual growth in numbers, not just revenue, because let's face it the trickle down model's never worked!