I was also impressed by the original Hololens. The hardware, however, needs some improvements. The headset was a bit heavy for long term use and the resolution

I was also impressed by the original Hololens. The hardware, however, needs some improvements. The headset was a bit heavy for long term use and the resolution of the AR image was not as good as I had expected. The software and SDK were solid; what stood out to me was the realtime spatial construction of the environment.