No. Whilst the spell does grant advantage on checks, it doesn't for saving throws. An often overlooked rule, many mistakenly think of saving throws as a type of check. They indeed have a lot of things in common: rolling a d20, adding modifiers and attempting to beat a difficulty class. Unfortunately, however, they are not the same thing, and this spell will do nothing to help you take half damage from a fireball or resist the charms of a succubus.