Over the past 25 years, we have sold all 5 of our homes FSBO, and saved thousands and thousands (and thousands!) of dollars. Never had a problem ...it is amazingly simple, you just need a good title company or attorney, who will even write the contract for you! Nowadays, you can easily create your own market analysis with the help of the internet, so no worry about being over/underpriced.
If everyone tried it just once, no one would EVER list with a realtor.
I'm with you, selling without a Realtor makes tremendous sense. Have similarly saved thousands, and the process left me assured that I would never use a Realtor again.
In fact - the hardest challenge was getting beyond a few sleazy Realtors who told their Clients that my home was sold (when it was not). This happened three times in my last experience and could prove it. Also had a Realtor refuse to honor their Client's request to submit a Purchase Offer because she wouldn't be collecting (I had even offered her a small finders fee).
Similarly, I purchased my most recent home without a Realtor from a FSBO - saved a ton of time and money for everyone.