I have used a ton of other resume builders online and although they may have additional features, Rezi does not lag behind by much. And obviously, the price was couldn't miss.

The best parts of the service:
Keyword analyzer
Unlimited resume
Unlimited CVs.
Resume Samples
Overall analyzer

Downside:
Lack of sample cover letters
Limited resume samples

I would highly recommend Rezi and will be recommending it to friends and family.