At long last
Definition 1 of 1
Pro Tip 1/3Implies Relief
The phrase often suggests relief that something has happened after a difficult wait. 
At long last, the wait for the exam results was over.
Pro Tip 2/3Narrative Drama
Used in storytelling to build tension before a significant event or outcome. 
At long last, the hidden treasure was unearthed.
Pro Tip 3/3Not Repetitive
Avoid using 'at long last' frequently; it's impactful in specific, occasional cases. 
She won the award, and at long last was recognized for her work.