This link discusses FSBO using Zillow and some of the pros and cons:

https://www.realestatewitch.com/fsbo-zillow/

And it discusses agent fees paid to the buyer's agent and suggests using Clever instead. Anyone have any experience with Clever?

"If your buyer is working with an agent, there will still be fees the agent will collect throughout the sale, typically around 3% of the final sale price. At the end of the day, even if you are selling FSBO, you will still need to pay some sort of agent fees.

To help out with these selling costs, work with Clever to get transparent pricing on the selling and closing costs. Clever negotiates prices with agents so you only pay 1% or $3000 to your listing agent."