Finally got to ride a 2018 Yukon this morning thanks to a new Voltbike Ambassador AND the only one on O'ahu. Brand spanking new Yukon Ltd with only 1.3 miles on it. When I first saw the bike my jaw literally dropped. What a beast! This definitely wasn't my Trek FX bike. Solid bike and a very comfortable ride. Handled a short 12% grade better than I expected and debunked the myth that I needed a mid-drive. Now, I did have to pedal, and it was a workout, but a lot easier than pedaling my Trek up my 7% grade to the house.
The bike owner also had a new Mariner for his wife that was equally as impressive. Fantastic ride and I didn't feel like I was riding some circus bike. Either bike would be a good choice.