This is an amazing piece of equipment for a semi-decent runner (not elite, but has clocked sub 18 minute 5km; sum 37 minute 10km; so on). Not to flex, purely to say that decent runners can and do use this. During my research a lot of people raving about this weren't traditional runners or triathletes but hybrid athletes, Hyrox, crossfitters, etc. Absolutely nothing wrong with that, but that isn't me or my training.
Happy to say this has been a really good purchase for my wife and I. It's different to the electric treadmills for all the reasons people say, but it is much more efficient for quick 30-60 minute doubles, speed work or Tempo Runs. This slots in to my training more as cover for when I should be out doors, but can't because of parental responsibilities or because I am fitting a second run in at lunch when working from home and may need to cancel the workout at a moments notice.
I will say that as good as it is, we have a second treadmill too for easy recovery runs ... this isn't great for that, but you definitely can still use it.
The big win as well which I found in my research that a lot of people don't talk about because they don't care is how easily this integrates with zwift. If that isn't something you care or know about, then carry on, but it is something I care about and it works effortlessly for speed. It also tracks cadence but I am not sure how much stock I'd put in that.
One thing I will say for any triathletes: this is a challenge for brick runs ... I know you should be out doors, but when you can't, this is a lot harder than an electric treadmill. Neither are really reflective of running outdoors when you're under that fatigue, with the electric being too easy and this really grinding you down after half an hour, so it isn't at all an issue, but it is something to know.
