Been trying them for 2 days now, and I gotta say, personally, I'm not digging them that much...
Two major concerns, in my case:
- Comfort (they feel slightly small):
the headband stretching/adjustment is not enough and it puts a bunch of pressure on the top of my head, while making the positioning of the "V" shape pads a bit higher than my earlobes would like. The ears will still be full inside the pads, but overall the headphones fit it just too tight, making the headband pressure down on my head too much.
The headband top cushion design is also counter intuitive in my point of view, since the foam is cut/interrupted in the middle, which is where there's contact with the head, not the sides where it has the most padding area. Having spent a lot of time with headphones over the years, I now that over time the cushion starts to fade and begins to get thinner, and in this case, having even less on the middle part (+ those slopes), will probably aggravate the situation and just make you feel the solid plastic and pressure even more.
- Sound quality:
while I didn't notice any distortion on low and high pitched frequencies, which is good, the overall sound is quite odd. Having a pair of HD380 Pro's and an X-Fi Fatal1ty Pro series card, the sound of the GSP's is somehow funneled and where it's more critical is when playing a game in a open area... it doesn't sound open, it seems a bunch of sounds are a bit muffled and coming from inside something like a box. Some mids and highs seem overwhelmed and hidden behind the lows and it's just not that pleasant... feels like you're lacking detail and loosing track of some of the sounds (vs HD380's). I guess I can say it sounds like using one of those sound effect presets that you find on the drivers of an onboard sound card.
I did like the volume adjustment and the micro usage, but when the two major factors are not there for you (comfort and sound), then I guess they're not the right ones for me to keep around.