Ethanol Free Gas - What's Your Experience?

I only use ethanol free. Well, as far as carbureted engines go. On our drive from Buffalo to Carlisle, we planned a route to hit the Ethanol free stations. Worked out exceptionally well. Now when I worked for a small engine shop, most all problems were from that new chitty gas that turns to water. The worst thing was the owner would stock, use and recommend E10 to the customers, just to sell this “fuel medic” potion