To answer each question in turn:Hours - does depend on the project/bid work you might be on. Some projects will require necessary very long hours in certain periods and this might be unpredictable. Other projects will be 9-6 though you'd expect to be available on phone/email later. Continuously long hours is often down to impressing others and not being known as the one to leave early. If you want to advance quickly then expect to give up your evenings and some weekends.Geography- depends on culture at organisation but the rule is you go where they need you. Some flexibility for women returning after maternity leave perhaps but certainly for junior people, you rarely get a choice.Perks-often airports and hotels but if you're somewhere interesting and with a good bunch of people then the expenses might be a good perk. Don't be reliant on getting that though.Lifestyle-varies between firms, between the strategy houses, big 4 and boutiques.It basically will vary throughout your career-one year you might be 15 mins from home, the next year you might be on your own in a dull hotel in Blackpool. Be prepared to accept any possibility!