The falls are absolutely amazing! The two decks and the bridge are perfect for taking pictures but the hike in the beginning is absolutely awful...its so steep for the first 20 mins of the hike. The rest of the hike is like a moderate trail. The road getting back there has a lot of potholes so if you have a car GO SLOW! And don't make a right off the bridge on your way back out to the main road! About a half a mile down the road is washed away...I don't know why it isn't blocked off...gps told us to go that way and I had to back my car all the way back to the bridge and turn around.
Disappointing hike given the effort required. It is incredibly steep in the begiining and the highlight of the trip is the falls which is at the start of the hike. I expected to get to an overlook or something when at the top but nothing. I like secluded and hard to get to places that seem removed from the rest of the world and how incredibly disappointing to get to the very top and go to Crater Lake (don't miss it or the hike really isn't worth it) and find out that there are tons of people on the other side that took a road up to get there. Sorry, just not exclusive enough for me. :)
Also as other reviewers hae mentioned, pay close attention to where the trail goes. Go back down hemlock from the AT if you came up the blue marked trail and visited crater lake. I enjoyed the cross country trails that you hit after the short climb down Hemlock trail but the trail after that isn't marked and you'll need to follow the proper route to link back up to the steep downhill part of front end of the original trail.
Finally, ABSOLUTELY watch the road going south away from the falls. If you have a car with low ground clearance or value your suspension and bumpers go out the north side of Mountain Rd. Your car will thank you. The potholes were gigantic and it had recently rained and the massive puddles made it impossible to know just how deep they were. Given how far out this trail is I'd find other trails more worth the effort and potential damage to your vehicle. If however you want to see a fantastic waterfall, by all means visit, just skip the hike.