There isn't any place to just leave general feedback, so I guess I get to create a new thread.
I've played a bit with the Tidalis Demo, I must admit it was quite a bit of fun. I will likely end up picking the game up as there isn't a whole lot of play time in the demo. So my opinion is a bit biased, more or less because I played the game for all of the 20-30 minutes the demo allows, but knowing how they respond to the demo might also be important.
So some thoughts:
1) Switching the tiles is uh, sometimes really finicky. Maybe I'm just not used to it, but while you have your mouse over a tile and right mouse is held, moving a mouse in one direction at all will turn the block that facing. Maybe it's just me, but when I draw lines with my mouse I have a tendency to draw back a tiny bit at the end, which the game interprets as rotating a block in a random facing. I'm probably just too shaky or have the DPI up too high for this game, but at times I would literally change a row of 5 blocks and even ones in the middle might be the wrong facing. I dunno what can be done, it's hard to get used to it. It doesn't really feel good.
2) When you start a new game, the game asks you if you want to take the tutorial, which I elected to do. After I finished the basic tutorial, it asked me if I wanted to play story mode, which I also elected to do. I did this because I thought I was done all the tutorials, but apparently I wasn't! Edit: It kind of does it after the second tutorial, it just ends, and you have to escape back to the main menu.
3) When I started story mode, it took me all of like 30 seconds to figure out what I should be clicking on. It really isn't clear, maybe the stage icons should glow? Also while it's story mode, there's not much story. Like bam, you're in a game, no transition or anything, was unexpected anyways. I guess it's just cause its demo that there isn't at least any exposition?
4) I have serious difficulties tabbing back into Tidalis while the game is running in full screen mode. The game tries to restore, the music comes back on, and then it plops back to desktop. Windows suggests that Tidalis is the active window, but doesn't like going back to the game. I got back in once, but the second time had to use task manager to close the game because I couldn't get back into the game. Edit: Sometimes it does it for first launch too.
5) The basic tutorials was pretty informative I thought. The more complex ones are sometimes a bit confusing, especially in the wording. For example, the tutorial with the mid combo rotation, it literally states 'You can clear this in one move by rotating the blue block on the red row after it drops', which is misleading, because you have to change a lot of things, like change all of the reds, as well as the blue block before the chain starts, and find out the starting point in order to complete the puzzle. It does this quite a bit, suggesting that a puzzle can be solved by making a simple change, when it usually required more. You also have to find a starting point, which contradicts the 'this is all you have to do' style of the tutorial.
6) The short circuit tutorial uh, can be completed without changing any blocks just by clicking the top green block. I'm uh, not sure that even uses short circuiting, because I wasn't completely familiar with what that meant. (Edit: Looking back, the block that the tutorial asks you to point to the bottom of the board is already pointing that direction, solving the puzzle for you).
7) I'm really just nitpicking now, the second story stage asks you to clear 25 blue blocks, but it took literally over half of my tutorial time because no blue blocks were dropping.
Serious nitpick mode, confirmation boxes for restarting the level after you've already been presented with a failure screen.
It sounds like I have a lot of negative things to say, but don't take it personally! If I didn't like the core game I wouldn't bring it up, I will probably purchase a key whenever I get some free time to waste with a game.