Really nicely done game. I played through the hour long demo and I only have two complaints:
1. I wish it was more than just a match 3 game. The artwork and story and design and music and everything are top notch... It's just sad to see this kind of quality being put toward something as basic as a match 3 game. This game would have been 10x amazing as something that required a bit more action and not so much.... gem swapping. Also because the game is focused on match 3, you end up missing a lot of what's going around outside of the match 3 area of the screen... It's kind of hard to focus on seeing the battle and what's going on up above when you're busy matching stuff down below.
2. The game just closed on me completely when my hour was up. I wasn't aware my time was up and just thought the game crashed. I think some sort of window popping up telling me the demo time has run out would be a lot better than just quitting the game out completely. It wasn't until I ran the game again and noticed that it said I had 0 time left.
I'm going to be a bastard and say... I'll buy the game if you fix problem number 2. If you put a demo time expired notice up instead (and kick the player back to the main menu) I will buy a copy. I know it has nothing to do with the full game, but I'm just being a hardass.
I think with the level of polish the game has, you're doing it an injustice by just closing out of the game after demo time expires. You need to be giving the player a button to click to upgrade... not close the game completely.
But overall, great looking game. I'd play through it even though I'm not a big fan of the match 3 mechanics. Just to look at all the artwork and story and such. So that's saying something, I guess.
Add something that doesn't close the demo when you run out of time and I'll buy.