Never worked with either of them but if I did have one, I think I'd probably want to use them differently than in most places.
Lots of folks use them to see low acuity stuff. My problem with this is that I don't know its low acuity until I see them and make my own determination that there isn't an emergency hidden in their low acuity complaint. After all, that's the hallmark of our specialty.
I'd like to get ones who are good at procedures and use them for that. I'll see all the patients but they do the procedures. The vast majority of procedures that I do are monotonous, time consuming and don't require a physician. Suturing and splinting leap to mind. They bill well and are necessary but really slow me down.
I may not like back pains and migraines but I've found epidural abscesses and subarachnoids that were subtle and, I like to think, required the knowledge of a trained EP.
Take care,
Jeff