I think it's a genuinely good implementation of the concept. It looks good and plays reasonably well and captures what it needs to capture from the original.
(Update: OK the sword fighting isn't good. As I got deeper into the game my positive first impressions wore off.)
I haven't tried any of these demos, but I'm not surprised they stop impressing once you go deep.
What got be mostly impressed were the demos of Astra doing computer use. At my job I do some RPA and can appreciate how challenging it can be. Yet they make it look extremely easy to operate a tool like Blender at super human speeds.