How rigorous do you think the selection and training procedures are? I've had assessors ranging from a batshit narcissist who spent the interview 'empathising' by telling me all about her problems, through hostile box-tickers who couldn't have made it any clearer they assumed I was lying, to an amazing assessor who'd done training in my condition. She was very, very diligent and asked tons of questions that showed she understood what may and may not be possible.
I'm covering a period from 15 years ago to 5, though. I wonder if things have changed at all.