Ran six out of seven days this week and it mostly went well. Plantar fasciitis didn't get any worse, and was barely noticeable for several days.
I finally concluded I probably just have to replace my main pair of distance running shoes, which I've been hesitant to do since I felt like I've already spent a lot on gear and races lately. I'll see what the chiropractor I'm going to see tomorrow has to say...
Yes, they saved my feet. I swear by them. The next best thing to getting custom $200+ orthotics from a foot doctor. I own several pairs. Even my casual shoes have them inside.