If you're able to, I would highly reccommend doing the revision and QBD days. Revision is where i really took in the course and learnt the techniques i would need for the exam to get me through. The QBD was excellent for exam practice and getting feedback from markers on how to improve what I was doing - it also highlighted the areas that i was weakest. Unfortunately these were still the areas I was weakest in the actual exams so next time i'll be focusing more on those areas.
If you're only able to attend one of the two it really depends on whether you're good at self study or not but I would suggest doing the revision over the QBD as they really help you understand how to 'pick up the easy marks' in each exam. Then all you would be losing would be feedback on exam question practice.
Coigach.
