I'm just coming to the end of the course with bristol...my final exams are in jan.
They have been excellent their support and brushup course are second to none. The online forum is v helpful and the notes they produce are clear and concise.
They have an excellent pass rate and i'd recommend them to anyone.
I've been doing a little more than 15 hours a week probably more like 25, but you can take as long as you like really
Hope this helps
Tom