Damn, I played this few months ago and forgot to write the feedback... anyway, let see what I can remember (thats also a good test)...
I kinda like it! (at the time of playing, I was thinking "wow, nice, something original", which is good) It's like candy crash meets... something. Although sometimes it plays way too much "by itself". The extra obstacles that come in later are cool, although I have a memory of some kind of obstacle being pretty annoying, in the way that it became "unsolvable" and just blocked a space. (cant tell you which one it was tho, sorry)
There's just one thing... even though it's a nice working gameplay and all, I'm not sure the "pipe" visuals are adequate. They make me thing of true "pipe games" (where you, ahem, connect pipes), and its kinda weird to see this pieces fall down on each other, but only kinda, floating in space basically, then disappearing like Candy. Feels like a clash of 2 styles.
Otherwise it's swell! Keep up the good work.