This is a very solid aid to the Trinity game line. It finally gives a information on what the Big Bad of the setting (the Colony) is planning.

Additionally, it functions like a pocket guide to the Orders, giving more detailed information on all of the Psi Orders than is given in the core book.

The only drawback is the alternative power system - it is very thorough, but unfortunately it is a bit cumbersome and not at all easy to get into.