I own a Woodway 4Front but have spent considerable time (probably 50+ hrs) on the Skillrun as my old gym had a couple.
Overall, the running surface is better on the Woodway, but both are far superior to a regular treadmill.
A new Woodway is going to have integrated Bluetooth speed, and the Technogym did not as of a year ago - but that can be solved with a Runn sensor.
The Technogym has a feature I LOVE for intervals - you can preset a bunch of speeds prior to a workout in their “Speed Shift†mode, and then any time you bump the speed paddle it jumps straight to the next level. Perfect for intervals - let’s say you know your aerobic pace, your easy pace and your interval pace - program in ahead of time, and then you can cycle through them with a paddle - while still being able to manually adjust the speed on the screen.
Overall, if I were buying NEW - I’d probably get the Technogym. Heresy, I know - but the computer functions are slightly better and the tread is still pretty darn good. However, I picked up a used Woodway for just under $5k, and I’ve never seeN a used Technogym Skillrun for sale…… which is why I own the Woodway 
Hi IKnowEverything,
Thanks for the comment. I was able to test both treadmills at a local gym. And I think I get your points in the comments now.
I run on both treadmills for 45 minutes each. The Woodway running experience is better. Here, better is defined as more cushioned, shock absorbent.
Running on the 4Front indeed feels like running on a “wood wayâ€: in the sense that compared with running on paved roads, running on 4Front feels a layer of additional shock absorbent. To me it feels like the belt is almost like a basketball shoe’s sole to further absorb the shock for you.
Yet, running on the SKILLRUN is still very impressive, but it seems that it is designed to be more real life like than Woodway. Real life here as the running experience between running on a paved road and running on the track. Compared with Woodway, there is definitely more shock back to you on a skillrun. But such shock is still less than real world. So a more paved road or track running experience.
I also agree with you that the computer functions on skillrun really shines. To me, I was very impressed with the real time biometric feedback: power, cadence, step length, fly time, ground contact time, etc. Having a big screen in front of you to display these metrics is really helpful. I was initially very skeptical about the running power concept. But power does shifts in the magnitudes of 10-30 watts when the running form changes. While I am trying to increase my cadence up to 180 from 160, I saw the running power decreases. I think it will be helpful to build a good running form.
I haven’t tried the time shift feature, but I am sure it will be very helpful to make drill training easy: adjust speed while running kind of sucks a lot.
Regarding the Bluetooth issue, you are right. Skillrun is not compatible with Zwift. As far as I tried, the Bluetooth and ant+ support of Skillrun only allows connection of heart rate monitor, smart phone and headphones. The treadmill itself cannot broadcast its metrics via Bluetooth and Ant+. If it can, that would be really awesome, given how much running stats it tracks.
I also read a little bit about the treadmill speed broadcasting accuracy. It looks like to get the most accurate reading, the best way is either a stryd pod or a runn sensor as you suggested. I guess to get the most accurate data, additional device is a must now for both devices.
I really wish treadmill manufacturers can put more efforts on improving speed sensing and tracking more running stats (I guess skillrun already did). Additionally let the treadmill broadcasting its metrics via ant+ like all the bike trainers. But I can understand why they don’t do it: virtual run is still too early and there isn’t that much market there.
Curious what will happen in the next 5 years!