I can see in a dark lab with my EMCCD camera. It doesn't look as good as in this video, but they got maybe a 3x improvement compared to what I can do at present, with minimal effort.
On the producent's website there is a comparison between their X27 and competition. EMCCD has fair 2nd place in this contest. It has more noise than X27, but what you can get is still remarkable.
