This is why once you are using to using them, you start asking them for there the plan goes wrong. They won't tell you off the bat, whuch can be frustrating, but they are really good at challenging your assumptions, if you ask them to do so.

They are good at telling you what else you should be asking, if you ask them to do so.

People don't use the tools effectively and then think that the tool can't be used effectively...

Which isn't true, you just have to know how the tool acts.