Excellent, enjoyable hike. The trail to the falls is relatively steep, but switchbacks nicely, and with every switch you get a new million-dollar view! The falls were a bit low in flow this time of year, but they were still very nice! I did not hike to the mine buildings, the trail to them did look treacherous, as described in the guide.
After the climb to the falls, the remainder of the hike is an enjoyable stroll, with little to no significant elevation gain. Also, the coordinates given in the guide are spot-on, but the milage on my GPS was a bit off. Like other reviewers, I would recommend trekking poles, I was very glad to have had mine with me.