Very nice hike but very challenging (my calves were soared the next 3 days). The falls are nice and the upper part past the falls sees a wonderful forest path along the river, a delight! The path to the Appalachian Trail to mount Everett is indeed rocky and steep (strenuous) and views are not really there (unless you got someone to put you on their shoulders :D). Make sure on the way back (close to the parking lot) to take on a a left and cross the river (I kept going straight lost in my thoughts and realized that there was houses that I did not see on the way in and I had to turn back...).
Took me about 2-2h30 to get to Mount Everett with a fairly good pace.