Is the Testimonial Formatter free?
Every account gets one free run, then it's 1 credit each (free monthly credits cover normal use).
Does it exaggerate or make up results?
No — this is the core rule. It uses only what's in your source, tightens the wording without changing the meaning, and never invents or inflates results, numbers, names or quotes. Any specific that isn't in the source is left as a [bracketed] blank for you to fill with the truth.
What do I paste in?
Anything the customer actually said: a testimonial, a Google/Meta review, a support message, or rough notes from a call. More context gives a richer case study.