I've played the Cube Club demo. Meaning that I can like the gameplay and puzzles shown there. And if I liked it there, it's been improved. So I'll probably like them more.
The only part I might have an excuse to not have down is the story. But then, I've done so much research into it that I kind of have a minor understanding of how big the game is and how it's going to go down.
It's like somebody saying before it's out that they're going to like Metal Gear Solid 2. If you did research on it, and played the demo, you probably will have a good grasp on whether or not you're going to like it or not.
You can say you're not sure. Because you haven't done the research I've done on it. But I've got a good compilation of information on ED. I think I know enough about the game to make an intelligent assumption as to if the game is for me or not.