Great idea, faulty execution
I usually love games of this genre but this one was disappointing. First of all, despite all the obvious work put into the game, the tutorial is awful, like it was an afterthought that got thrown in 5 minutes before it got submitted. It doesn't really teach you anything about how to play the game, so you may as well not even have it in its current state.
Secondly the controls are awkward and really obnoxious. You usually end up rotating while you're trying to lengthen a piece and vice versa... separating the buttons would go a long way to improving the playability. I give it a 4 cause it wasn't horrible but it was just too frustrating to play for very long, a few tweaks and it'd be much better.