I have to have a Frequent Visitor card for my job as an area sale manager, as I am often found in large holes in the ground (I work in civil engineering).
I have just renewed my card and they have made the whole process more complicated / expensive, as you take the test with one organisation that charge you £17.50 and then you have to cough up another £30.00 to CSCS for the card.
In the last five years I have NEVER been asked for my card, not once, even though I have been working with major contractors on huge sites and frequently don PPE to go get muddy.
The test is pretty basic, but unless you know about working in confined spaces, or at height, or about handling heavy loads, fire extinguishers and the like, it is worth getting the revision guide.
As an aside the people at the Bristol test centre were unbelievably rude. I know they are dealing with site workers all day so are likely to get a little hackneyed, but that is no excuse to bark at me (and everyone else), like I am a new recruit on my first day in the Army.
Mind, a measure of your typical applicant is that I entered the test area, which was almost fully occupied, logged in to my computer, did the test, did the customer survey, left the test area and received my pass certificate, during which time not a single other person left the test area.
"Try not to punch any clowns"