Some folks have a hard time with the questionnaire.
They have been raised not to brag about themselves. And so questions that ask them to rate how good they are feel like boasting.
On the other hand, some folks have been raised with an inner critic which is constantly confirming that they are no good at all.
In my view, both of these deny the reality of God's love for, and gifting of everyone. These can be powerful habits of mind and may make it difficult to find a comfortable new self-understanding. However, I do encourage everyone who uses this questionnaire to explore the reality of affirming the gifts that have been uniquely given to you.