Jan 2017. Did part of this trail a couple days ago, came back today to do the full loop and loved it! Muddy in parts, but less so than Hau'ula loop last week. Parts of the trail are damp and jungly, other parts more open and drier. I didn't have my phone or a map, but the trail was very easy to follow, and marked the whole way with pink and orange ribbons. I went counterclockwise (i.e., took a right when I came to the hiker sign), which meant the ridge with ocean views was at the end. The ridge portion is a relatively short stretch of the trail overall though. In the counterclockwise direction, the trail goes up for a while, then down for a while, then another short up and down at the end. Wearing short sleeves, long pants, and no bug spray, I got two to three mosquito bites (the damp jungle sections are buggy, though sounds like less so than in summer).
Muddy in parts, but I did it in tennis shoes (though they ended up covered in mud). I'm usually a mosquito magnet but didn't have any spray and only got one bite. I went clockwise, beautiful views on the way down. Parts of the trail are covered with soft, springy pine needles that were great to hike on. I saw footsteps but didn't see anyone on the trail. Great birdsong and trees! Don't do this for the waterfalls (they're pretty small) but otherwise a very pretty hike.