Just got them in the mail. Sound amazing for the price, fairly close to ATH M40x which I returned, but less detailed (obviously), less neutral (on that below), but more warm (a big plus).
Sound:
Upper bass seems to be slightly recessed, the mids are just fine, the lower highs are a bit grainy (but not too much). Soundstage is decent, stereo imaging is good, clarity good as well. This is one of those headphones where the driver has to be as close as possible to the ear to sound its best, and the more millimeters you move it away, the more canned they sound (pressed against the head is optimal, but who does that for hours on end, right?) The default (how it sits naturally) is fine.
Build quality:
Cheap plastic, rather cheap pads, cheap headband, but doesn't looks like it will fall apart anytime soon. The cable is decent, but way too long (3 meters). There is an adapter included.
Comfort:
As expected at this price point, the pads will warm up your ears after 30 minutes or an hour, but not too much. I wouldn't wear them on a hot summer day, BUT they are ideal for winter, when you WANT your ears to be warm. The headband is soft enough, and the top of my head feels just fine. The (°_°)phones are relatively light, which is a plus.
Conclusion:
If you want something cheap and fairly neutral to wear outside, WITHOUT the fear of breaking something expensive, buy these.
My own thoughts:
Tascam should make an improved version of this, with even flatter response, better pads, better plastic, and removable cable. Price it at about 50-60 dollars, and it will be well worth the price. Plus, on Amazon it will be down to 30-40 in a few months after release.
P.S. Listening from my Apple laptop instead of iPod reduced the graininess of the highs to some degree.