There are limited opportunities to use the aware, this is true. This is most especially due to cost - $3,500 for the base model Hololense. But it works and is actually really cool. It's like the original Microsoft surface product - the table sized tablet thingy, not the laptop form factor - it was too expensive and never saw wide deployment, but it was very cool if you actually got a chance to use it. It's priced out of consumer use, which makes it invisible to most. I have no idea how many people have learned to be airplane de-icers thru Hololense-based training programs, if it's all a marketing gimmick, or if there's a new generation of them trained in VR. It certainly sounds cool, but if they were really making money, it doesn't make sense for Microsoft too have cancelled the project.