Then came the long haul of getting her feet toughened, but for me it's worth the timeis takes, so that I can ultimately ride on any terrain.
The other guy is local and very patient. Not a problem with my girls, but he is very patient with horses that don't like their feet worked on. For mine does a lovely job of leaving them a level natural foot complete with the roll (not they call it a Mustang roll, but we didn't have a fancy name for it 40 years ago when I started having horses).
In the end I guess a good farrier is one that gives you what you want and keeps your horses feet always healthy. No horse I've owned has ever had so much as a sore foot no matter where we rode, so I can't complain about any of my trimmers.
So I guess that what to look for. A healthy, happy horse, with never a foot problem no matter what you want to do with them.