Is anyone happy in investment banking?

all the posts i read about i banking sound so negative. what are the positives? what do you gain from your experience in ibanking? also, are there any positions that don't require 80+ hours a week?
thanks

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all are

Hello.

1) If you are not willing to work 15+ hours a day, 6 days a week, IB is not for you. Period. That's simply how the game is played.
2) Benefit: After two years as an Analyst, you'll be able to crank out a company's financials in your sleep. Very useful in almost any other career you might want to pursue. You may also find satisfaction in completing deals. Most people don't, however, because by the time the deal is finished you're running on an average of 2 hours of sleep a night and your Associate is already hounding you about another 5 pitchbooks that need to get edited by 8am.
3) Benefit: After two years as an Analyst, nothing you ever have to do will seem nearly as challenging. You will fear nothing. Except rejection. And your girlfriend cheating on you. OK, revised benefit: You will fear nothing work or career-related.
4) No one (or very few) go into IB as a lifetime career. You can start as an Analyst for a two-year commitment and see how you like it. If you do, you can stay on as an Associate. Most people instead go to B-school and take jobs in other (financial) fields.