The wife and I went to look at a demo of this yesterday. My main question was how smooth/natural would the weight feel. On that score it was very good. To me it felt like any other cable machine I've ever used at a gym. None of that jerky, non-linear weirdness you'd get from a bowflex type machine, or an inexpensive cable machine from Academy. It was really good.
Here's a good review that seems to be pretty fair. They go into good detail on why it's not quite "peloton for weight lifting" in terms of user experience. There's already a camera built into the machine, so it wouldn't surprise me if they offer more interactive features in the future. Especially the ability for someone to monitor your form via camera. Which I'm sure would cost more.
It's certainly going to appeal to non "gym people" like myself. I'm pushing 40, can't run as much as I'd like, and I just flat out NEED to be lifting. It's dumb that I'm not. But I'm also a pretty solid introvert. I hate the gym and really hate interacting with people while I'm there. I've got two kids under 4, and limited time/space at home. This thing targets people like me for sure.
I've only ever stuck with lifting for more than a couple of week, once in my life. Lasted about 3 months. Which naturally is also the only time I ever saw any real results from lifting. The Y had this computer that logged all your stuff and gave you workout plans down to rep and weight. That part I liked and helped keep me motivated, but I still felt aimless a lot of the time. The Tonal takes that to another level.
It's a lot of money, but like anything else, it's probably worth it if you use it a lot.