Someone asked for an on-feet picture a few pages ago... here's my shot of it.
On top of that, I ran my Sunday morning 5K run (just a run, not a race) with these, and I can only give you... half of a first impression? Haha, so because I know this shoe benefits well for anyone who don't strike on their heels, I wanted to take my time with my run this morning, and decided to do quarter-mile intervals to compile a 5k total distance at the same running pace and energy while also adjusting to a midfoot strike. Over the week, I was doing some balancing drills to get myself adjusted (thanks to a training video from LIVESTRONG on YouTube) by doing a couple 30-second one-legged balancing while putting weight entirely on the midfoot/forefoot area and nothing on the heel. Also did small segments of stride adjusting when I was running in the VaporMax.
Okay, anyway, back to the shoes. Biggest skepticism for me was the ZoomX foam... key word: "foam." Lunar foam always mess with my left knee after a few miles. However, ZoomX was actually fine! Then again... I was landing on my midfoot with these the entire time. The traction of these shoes is far superior to the Zoom Flys... I slipped on sandy areas so much running the same route I ran with the Zoom Flys. The Vaporflys are much better. Flymesh, like the Zoom Flys, felt great; I like the material a lot!
The cushioning for me felt good, and it does the job! For the foam itself, it's very well-tuned and like I mentioned before, throwing the carbon fiber in there is the difference maker. I'm not blown away about it though compared to when I'm just walking since it feels like a trampoline when I walk in them, but I am a lot happier about Nike putting a much better foam-cushioning system. Again, I'm not a fan of Lunar ANYTHING, so it's easy for me to say that.
I can't comment on efficiency and how I felt after the run, because I took multiple short breaks (around 15-30 seconds) since I was focusing on stride adjustment.