My friend just joined one of the Big 4. Super hectic
work schedules but very rewarding salary.
But looking at the hours you put it on the work, the salary is not
high enough. Imagine working close to 12 hours work on a day. My
sis take back the work home and do. Like that how to socialise and
for married women how to do and get a child like wat our gahmen
encouraged? Also a lot of social activities are out of the question
during peak period 
Lull period they force you to clear all your leave. Only tat period
you are free.
Forget to add on the main office is open table concept means who
come who occupy the available seat first. Only certain senior ppl
seats are so called reserved. You at main office means no work to
do. All who got work to do are at the client sites. Don't be
surprised auditor need go warehouse do stock take leh.
Btw, sometimes big clients offer sell you their products at
discounted price. Imagine a whole carton of fresh mangoes. Go china
even better clients treat you restaurant everyday. They cannot
bribe you with money but they give you intangible benefits.