I'm convinced that choosing the correct shoe is the single most important decision a long-distance hiker can make. I have seen many hikers who were unable to finish a hike because of injuries to their feet or legs caused by a wrong choice.
Selecting the correct shoe can also be the most difficult decision to make. It's an individual decision. What works for me might be horrible for you.
I've probably spent more money on shoes than on any other piece of hiking gear. I know I've had more frustration with my choices.
I've tried nearly every type of hiking footwear made. Many times I thought I had the perfect pair, only to discover after a few miles or many miles that they didn't work as well as I had hoped.
In truth, I'm still looking for the perfect shoes. They probably don't exist.