yup, even though this has been done forever, you could always setup a computer at home and RDP to it. Most products I have seen have targeted corporations with IT departments that could set stuff up. This seems more like a easy to use personal/small company product based on their Azure infrastructure. Niche imo. And not that bad tbh, I've have had a couple of instances where I've had to use a Windows for something, and having a quick deploy VM would have been nice. Setting up VMs locally is a pain, so is deploying VMs on many cloud providers.
We all remember the famous Dropbox comment [0], right? I think the same holds true in this case. Even when there's an IT department to set things up, that still takes effort to set up and maintain. If it's available as a product, easily used and with a support hotline, I can even see medium sized businesses using it - depending on the price, of course.
Just a bit nicer to use (productized), which is important.