Ask yourself why you want want to work at Bridgewater
Pros
In short, you will come out of the experience being a much better version of yourself. You will be a sharper thinker and know yourself more intimately. Details: Your cohort of colleagues are likely going to be at least one standard deviation or more above average intelligence. They will be humble, direct, and interested in sharing a core set of values. You will learn/refine how to think about things systematically and relentlessly focus on what can go wrong and what to do about it. And, most importantly you will learn a lot about yourself (some of it will be quite painful) - i.e. what you're truly good at and what aren't which can be monumental in how you shape the rest of your career and life for that matter. Other comments about pay/food/parties/etc. are all true but keep in mind that total compensation balanced with total number of work hours may not be on average that much higher (10-15%); very few people are invited to participate in long term profit sharing.
Cons
The company is generally risk averse, the principles reflect a life-long learning in investing that protects heavily against the downsides. These are extrapolated to all things at Bridgewater, and naturally you experience a cadence of large outcomes are significantly lower velocity - if you value being nimble, taking risks then this is definitely not the place for you. Ray is on a multi-year transition out of the company but as of yet has been unsuccessful at finding/fielding a successful group of capable managers who will uphold the same degree of "everything that Ray can do". Founder transitions have rarely been successful, so it begets the question of what Bridgewater may be like 5-10 years down the road. You live in a constant state of tension....the principles on the surface are very logical and appealing but if you spend enough time living them, you'll realize that it's very hard to do so. You receive 360 degree feedback daily/minutely, which can be invigorating but prevents you from having an 'off-day'. Lastly, you will definitely run across principle management ninjas who can bend/shape anything you say into something unfavorable. This is not particularly prevalent but it exists, so don't buy into the fallacy that there are no politics at the company; there are just fewer and concealed by a shrewd application of the principles (not very hard with that many super ambitious mensa types).