I really like the way they are put together from what I have seen, and I haven't even scratched the surface. This one definitely is moving to the top of the list!
Well I have seen them and run them as my main saw since 1958 til 1985. I have been repairing them for also starting around 1963, there were no chainsaw mechanics in our local area so I self taught myself to work on them. I have worked on most models Pioneer made and the build quality is the same throughout the lineup. Some models were made as lower cost saws for landowners, farmers , homeowners etc, these models had some easily broken plastic parts on them like the airfilter covers on the smaller P series saws and the recoil assemblies on the Farmsaws. These saws can still be found cutting plenty of wood every year and a lot of Pioneer owners are still reluctant to give them up.