Satisfactory is a virture.
My grade on the test wasn't 100% but it was satisfactory.
you performance is not very Satisfactory. The truth was not satisfactory for judges.
She found the restaurant's service to be satisfactory.
The teacher said my maths work was satisfactory
In Art class I got Satisfactory drawing on my drawingf of a dog.
"Your work is very satisfactory," said his boss.
G
Thomas Jefferson kept writing and rewriting the Declaration of Independence, until it was satisfactory.
I hope you found our service satisfactory.It was difficult to find a satisfactory resolution.
You can add the word 'competent'. The sentence would read, 'During his tenure you found him to be competent, and his services were found to be satisfactory.'
In it's use as an idiom, it is correct to say, "satisfactory", when asked how you are doing.
It depends on how you use it a sentence (: