So I understand how it works.
What I don't get is why people consider it so powerful.
My thoughts are that if you need resources, you can always take some long shot test and get 2 instead of 1 (which is useful in some Survivor decks). That only works if you have the actions ot spare. Alternately if you are already crushing a skill test, you can activate it to get a card or 2 resources. But if you have to spend cards or resources to crush it, then you are more or less breaking even.
So I think I am not using it correctly and/or are missing something. What am I missing? Examples would help if its not to much of a bother.