It is only about half completed so there are some sections which are just marked with minimum blazing and treadway and other sections which are up to standards. Many of the sections with minimum blazing are an attempt to keep the trail as a continuous path. The goal is to go back and complete these sections as time and funds permit. It actually is pretty amazing how good the trail is considering that it is almost all built and maintained by volunteers. I have not hiked in Pennsylvania so I cannot speak specifically about that portion of the trail.