To meet expectations is to be as good as people were hoping. Nobody is disappointed, and nobody is astonished either.
No article, and the plural is fixed. The interesting thing is how faint the praise is: meeting them is the floor, exceeding them is the compliment, and failing to meet them is the sentence a company report uses when the year went badly. High expectations are the ones that make this hard, and living up to them is the version you say about a person rather than a product.
1phrasemeet expectationsTo be as good as people hoped.
“The film did not meet expectations at the box office.”
meet expectations is a matching of what was hoped for.
Practised in Common Word Pairs