Been a week using these 'phones, although I don't use em as my go-to either at home or out and about, so probably I need to burn these things more, but I think these will mostly be sitting on the bench for me. To be fair, I'm more in favor of something more neutral and analytical, so there's no way IT01 can topple my beloved Etymotic ER4 for my home listening. When I'm out or at work, I mainly use TFZ Series 2, something closer to ER4 sound signature, so IT01 lost out again.
That said, I don't think IT01 is a bad IEM, and the package is also a good one, with lots of tips. I like the feel of the cable too, lightweight, soft, and pretty much tangle free. It's just too bad that the sound signature isn't really the perfect one for me.