All depends on your songs and mostly on enviroment noise.

I personally tested it when music is very quiet at night, in loud caffe bars (plenty testing there) and even next to a V8 engine rumble and car driving.
90% of tests were a success.

About Chinese Store, I'm sorry to hear that. My mood since yesterday went from 'I'll nuke the forum and server' to 'that's sad'. Still undecided on that matter.