expression, noun which may take the genitive case particle 'no'
perfect; thorough; leaving nothing to be desired
Describes a situation, service, or treatment that is perfectly attentive and complete, with every detail taken care of. Often used in the phrase 至れり尽くせりの (e.g., 至れり尽くせりのサービス).
このホテルは至れり尽くせりのサービスで評判だ。
This hotel is known for its perfect, attentive service.
彼女の歓迎は至れり尽くせりだった。
Her welcome was thorough and left nothing to be desired.