I recently did the aptitude test at Cranwell and found it fairly useful.
they rate your pass mark, high, medium, or low. High no problems, medium okay but may struggle, and low forget about it!
In the main it concentrates on co-ordination and reflex. Personally I would have preferred tests that concentrated more on mental ability similar to tests done by airlines. It also would be interesting to know the pass rate.
However if you’re spending shed loads on training its good to double check you’re got the co-ordination to fly a plane.
At the end of the day its only 150 beans.