Pros
Nothing other than what all the other agencies offer, i.e. club lunches, incentives etc
Cons
I worked here a few years back the cons are various... despicable bully culture. Management feel that by being successful gives you the right to be plain rude and continually talk down to the junior staff. Sadly stems from the top down. They actively encourage bad practice, lying and being deceitful to 'make the sale'. Don't be fooled by the ratings and various best places to work awards, these are not genuine. There are better places to work, i've worked at an agency before and since my time at GCS and both show you can be successful without working the way they do. They make you feel if you don't succeed at GCS you won't anywhere and that simply isn't true, i've earnt a 6 figure salary since I left on a better commission scheme and with less egotistical people.