These are called semantic differentiation scales in marketing and customer satisfaction questionnaires.
They work through opposite ends of a scale like: good/bad or satisfactory/unsatisfactory.
This group of words does not conform to a regular good/bad scale semantically as it uses the word sufficient, the opposite of which is insufficient, both of which refer to the idea of "being enough". I would redo the scale like this:
Most scales when they follow the Likert 5-point method, use a neutral term in the middle of the scale.
Like this from that Wikipedia page:
Strongly disagree [Very poor or bad]
Disagree [Somewhat poor or bad
Neither agree nor disagree [Neither poor or bad]
Strongly agree [very good]
Editing the OP's we might get:
Not good or bad
I would not use this one:
Not Satisfactory, because it is difficult to do the five-point scale with it.
I would not use sufficient because its opposite is insufficient and those mean: not enough of something.
The "rule" for designing a five-point scale is that the end points
have to be opposite in meaning and the terms on either side of the
middle also should be opposites of each other. The middle term should signify a
neutral attitude from the customer or client or person answering the
This is the basic premise to keep in mind in designing a satisfaction scale.
The word sufficient (any dictionary will confirm this) means adequate or enough.
I don't believe the OP is testing whether the customer is receiving adequate [x] or enough of [x]. Also, it does not fit the semantic scale. And if the word were to be used, it would have to be paired with insufficient.
"Do you believe you receive proper attention from the company?"
Not quite sufficient
My example above shows use of the pair sufficient/insufficient and rates the idea of enough attention or adequate attention from a company. And I actually am quite dissatisfied with it. satisfied/dissatisfied would have been a better scale to use.