Which is better Agency or Facilitator?

We are in the beginning stages of domestic adoption. We started out with on agency and even submitted a formal application. We decided to go with another agency that required less money up front. We have been working on that application. Just recently I learned about adoption facilitators and discovered Lifetime. It seems a little bit scary to me being so new to the process. I don't really understand how it works without an agency. I would like some insight along with pros and cons of an agency and a facilitator. Also if anyone has had experience with Lifetime or with Lifeline Children's Services in Alabama please PM me. Thanks for your help.