Im having some of the same problems as other people. I have never done anything like this, and haven't even used a soldering iron before so its all really sloppy. It will bypass fine, but when I turn it on it hisses, and does the helicopter noise. And to be clear pretty much no guitar sound comes through. Here is a pic.
I have triple checked to make sure no wires were touching each other or the enclosure, and I have tried re-soldering everything. So here is a video of the pedal in action.
http://youtu.be/Vf0w_3QQ8ssoh yeah and the LED doesn't work but I don't care about that