The sections that need some help tend to be soggy, muddy bogs. There are quite a few of these portions, and they can make the trail difficult to navigate. Elsewhere, the trail surface is manageable, but the local brush tends to overgrow the trail.
There is a maintenance plan for the section from the Frosty Gap #235 trail to the horse camp above Summit Lake, which if funded, should happen in the summer of 2018. Watch comments for the outcome of that project.