Looks like every other review mentions DT.  This is what I think of at DT.  I have only had one provider come close.  

that guys should stop putting DT in their reviews if they didn't actually go all the way.
However, it is a difficult skill to learn and clients should not expect it (unless I guess if you are paying for PSE) and never force it like in those movies.

It is a learned skill...and somewhat is just possible or not.  Takes some planning too...many variables.

I don't doubt the difficulty or acquired skill associated with it.