The 'shortcoming' and 'merit' group
These nouns refer generally to the good, bad, or characteristic qualities, features, or behaviour of someone or something.
Achilles heel characteristic defect deficiencies eccentricities failings fault hallmark idiosyncrasies limitations merit peculiarity saving grace shortcoming (usu plural) trademark trait weakness
They were well accustomed to his eccentricities.
He was given no opportunity to counterattack in the thrilling manner that was once his hallmark.
Its chief merit is that it will grow in deep shade on a north wall or under trees.
I'm more aware of my abilities and also more painfully aware of my shortcomings.