Registered Agent Service

Hi all, I have a quick question for the business savvy people here. I am in the process of filing my LLC for my inspection business. I need to have a registered agent appointed for the company and because of liability issues I do not want to file under my own home address. Additionally, the use of a P.O. box or UPS box is not allowed either. There are many companies on line that offer the service however I am not sure which are worth it or not and legal zoom is quite pricey. I wanted to see if anyone can share their experience? Thank you in advance,