Stopped by my dealer this morning. They have a Summit with saddle interior, which is the same exterior color as my Limited, in the showroom.
I opened the rear hatch and stepped up to the vehicle... whack! hit it square in the middle of my forehead.
Opened the rear hatch of the Limited next to it and was able to walk up and under it just like on my vehicle with room to spare.
Moral to the story: I am 6'0". So if you are 5'11" to 6'1'' be aware that the electrically operated rear hatch opens about 2 inches lower than the manual rear hatch.