There are a lot of words we throw around as Christians that if someone asked what they really meant, we might be stuck.
Redemption is one of them — it simply means the act of saving or being saved from evil.
Then why is redemption better than perfection? Because God didn't make you perfect. He wants to care for you. He enjoys lifting you out of the dirt. No matter what kind of trouble you're in, God is looking forward to helping you out of it.
God is excited to save you and He's strong enough to do it.