Ive got very narrow feet and wear orthotics. These are the best fitting hiking shoes I've owned. They have a very rigid instep that firmly holds my orthotics in place.
I have had Achilles tendinitis for 18 months - at last it is beginning to heal because my foot is supported properly.
One thing I had when they were new there was a tiny bit of excess glue that dug into the side of my little toe. I reached in to my shoe an to my surprise there was a sharp splinter of glue that I easily picked off.