The original Red Matter was "ok" in my opinion, but not great. The puzzles were pretty straight forward, the story was acceptable but not memorable, the gameplay and related challenges were very linear, and the total gameplay time was maybe four hours? I think I paid $4 or $5 for it, so I feel like I probably got my money's worth and that's about it. For the original Quest hardware it did feature decent effects in certain places, however I really wasn't trying to focus on that aspect so much as the quality of the game itself. And honestly the level design was a bit "meh" overall.
The technical showcase is neat, hopefully they spent a lot more time on the story and puzzles too.