Pros: Comfortable, Mic Quality, Audio Clarity, Tight Bass, Replaceable Parts
Cons: Durability, Requires Good Source
I have had the headset for about 12 months now so I will just drop some of my long term expectations to anyone wanting to buy this. I have the second (current) revision of the headphones with the detachable cable.
Using this on over half a dozen sound cards now, I can confirm these need a good, clean power level for optimal performance. The availability of an EQ, ideally through a PC sound card would be ideal for lifting bass and enabling a virtual 7.1 effect which sounds great in these headphones. The bass response, once lifted through a quality source, is tight and goes loud, which allows the mids and highs to remain extremely clear at any volume. If you use them on a low end sound card they are going to sound bad as they are 150Ohm headphones.
They have a slightly unusual balance and sound signature compared to a studio headset, it works well for positional audio in games, but it will sound unusual for music enthusiasts.
The ear cups are not made of leather, they are made of fake leather and they don't last long and are not covered by warranty of any kind. You can buy replacements but they are very expensive, off brand replacements for PC350s will fit, but they also have an asymmetric design of the foam, so replacement cups don't quite fit as well. I replaced mine with genuine leather and memory foam replacements for a PC350 and they offer more space inside the cup and a tighter seal for a better overall sound, but they are less comfortable, so...
The braided cable does kink at the connector and the braid will fray over time, though that is to be expected, I do not expect this would be covered under warranty. The cable can be replaced, though it too is expensive and uses a priority connector, though it is a quality cable.
The carry it comes with I have literally never used, so I don't see any value there.
These headphones, while their original RRP was excessive, are good value at their current price. I would recommend pairing this with a high quality PC sound card rather than a dedicated external audiophile DAC or Amplifier.