Have you ever heard of the boy who cried wolf getting eaten?
Don't try to take your 2wd low clearance rental car up this one, you may have to back up 50ft straight.
Class 3 scrambling? It actually exists and you can learn what it is on this trail. Some very exposed maneuvers, try to stay on the shale going up and don't trust any rock regardless of size.
Remember the dirt roads you took up to the actual trailhead sign, you'll see many options going downward.

As for my hike, it took me 3.5 hours to summit from where I parked, 6 miles down. Coming down was a lot faster, but I spent a lot of time enjoying the area so no accurate time. Somehow the waterfalls were ignored by everyone but me. They made the area way more than just a crowded 14er for me.
It was an unending stairclimber until it became a climb instead of a hike.
Start early to avoid the crowds renting Jeeps. 8:30am summit, a few other people. 9am, a dozen with more on their way up.

Side rant: A jerk on a dirtbike thought he had the right of way going up on my side of the road because his side had jagged rocks. He saw me from plenty far enough away to stop, instead he sped up and yelled "get out of the way." If only I had a rock to fill that small piece of road... Keep in mind, I was getting off to the side of the road for Jeeps going down.
Don't be a duche, vehicles and exhausted hikers going down have the right of way, especially on their side of the road!