Newly diagnosed with plantar fasciitis, I was in a great deal of pain. I have a Wide Width foot and orthaheel shoes seem to be made in only in a medium width. I purchased the Powerstep Wide Insoles and Spenco Walker/Runner in wide. The Powerstep is wonderful. It fit perfectly in my SAS brand shoes. It is very supportive and has provided much relief. The Spenco is softer and not as supportive. It also fit the shoe. I still had quite a bit of pain when I tried the Spenco. It might be fine if you are of average weight.
NOTE from The Insole Store.com -The Powerstep Wide Orthotic Insoles are a semi-rigid orthotic arch support (ideal for foot conditions like plantar fasciitis) versus the Spenco Polysorb Wide Fit Walker Runner Insoles being a cushion insole with cushioned arch support for foot pain relief.