。
She was kind enough.
Literal
She [topic-は] sufficiently kind was.
十分 (じゅうぶん) means 'sufficiently' or 'enough' — she was adequately kind, meeting expectations. The past polite でした gives this a straightforward reporting tone. The sentence is notable for what it doesn't say: 'kind enough' implies she met a threshold but doesn't overflow with praise — a measured, perhaps lukewarm assessment.