Charm is a trailer. A track record is the full movie with reviews.

Charm is designed to be read quickly, and it is genuinely enjoyable, which is why it works. What it cannot tell you is how someone behaves over time, under strain, or when there is nothing in it for them. A record is slower to read and much harder to fake.

When someone impresses you immediately, treat that as a pleasant start rather than a conclusion. Ask what they have finished, who has worked with them twice, and how they left the last situation. Let those answers carry more weight than the first impression did.