I cannot comment on that
training aid, but running an
AIS display alongside will help you to understand what you are seeing, and will enable you to make much better use of the
radar. I personally prefer the
software from
ShipPlotter and displayed on a
laptop, primarily because of the ability to display CPA data, and the audio warning of contacts on a dangerously close CPA.
These are not an either/or tool, but rather a complementary pairing, and using the
AIS to identify what it is you are seeing, will help to speed the development of these skills.