This trail is a big tourist draw also, but is still worth the time to do it.  I enjoyed the walk and all the views along the way.  A nice breeze every now and then helped beat the heat.  It is a steady incline for the most part until you reach the top.  There are some stairs at the end to go up to the viewpoint.  There is no shade, but there are several spots along the way to catch your breath, if needed.  On a clear day you can see the Islands of Molokai and Lanai across the channel.

I didn't add comments for the pictures, as it's a paved tourist hike.