Hey there ...
Workload depends on the time of year ... for example our busy season is coming up in January and there is usually a few late nights during then (Jan to March). In terms of the amount of work you are given, it depends on the person and how quickly you take everything in, its very much geared around your development, and making sure that you have a bit of a challenge in the work you do.
In terms of he exams, I haven't found them that bad ... have had one today in fact. They are deffinately doable, it's just a case of putting the work in and making sure that you make the most of the tutors at college ... PwC pay for you to do every course there is for a paper with Kaplan Financial (i.e Tuition, Progress Tests, Revision, Question Based revision and mock exams).
Anything else you wanna know, give me a shout.