に越したことはない => It’s best that, There’s nothing better than ~ N2
に[越「こ」]したことはない => It's better if A, it's better if it's A N1
Comparison/ Exchange
にする => にする N4
すら/ですら => even ~ (with emphasis) N1
する => become ... N4
Situation, case
すき => to like... N5
Ability
…すぎ ... => too much N4
Emphasis on degree
すぐ => Right now N5
Short period of time
すら,ですら => Even A N1
(Not)only , (Not) even
いたします => to do (polite form of します) N4
なおす => to redo N3
Modify
とする => Suppose (assumption) N3
Condition (hypothetical condition)