Rick:
The approach is partly decent trail and partly talus and scree that can be a ton of work. There is about 50 yards of snow you must cross (crampons not needed). The peak itself involves a lot of class 3 scrambling. It's roughly equivalent to doing the final 400 on the Whitney MR four times. There is a short section at the beginning and one move just before the summit that are a little harder than anything on the final 400. The rest of the scrambling isn't very hard.
This was Carine's first climb with this much scrambling, and she did very well. There is a lot of loose rubble in that chute, and she carefully negotiated everything while only knocking down a few pebbles. It took us just under 15:30, car to car, including a one-hour break to shoot the breeze and enjoy the scenery. As a comparison, I would guess that if Carine and I put the same effort into the MR, it would have taken about 13 hours.
Summitpost.org has more information on Middle Palisade
here . Email me or post on this thread if you have any other questions.
Bob