I'll probably have more to say on this topic later. But for now:
The final rating was even worse than expected. But it was not surprising, nor particularly unacceptable. They grade on a curve, so fine.
My boss's comments were balanced positive and negative and point towards improvement, so I certainly have no complaints with him.
But I see a massive mood crash looming on the horizon.
For now: three new CDs and Sony MDR-V600 headphones