Finally the erfect time to write up a review for this favorite can of mine
Build: looks flimsy and minimal, but Very durable, mine has went through more than a year and still no problem despite few times fall from bed height, cable caught on something, still come out of it scotch free, the metal cover of the driver doesn't have any visible scratches, velour pads more durable than M40x Pleather, (well of course) and more breatheable, It's also very light, headband even with no cushion rest in between the thicker part, and my head sit perfectly with no comfort problem whatsoever, no complaint from me
Sound: It has a warm signature, a bit neutral with not much of emphasis on bass and it always feel natural on any activities I use it with, whether watching movies, playing games, or listening to music.
Bass is Laid back and enough for giving the much needed atmosphere any music needs, for movie or gaming with tons of explosion though, it may need a bit of a Bass Boost (good thing my Q1 has it) and you wont ever demand for more

Mids are taking centre stage but not too intimate to make it feel unnatural, it feels like I am listening to them singing in the same room (albeit quite small one It has better soudntsage than competitors on the same price range, yes, but compared to popular AT's AD 500x,700 etc its around the same in width.
It has rolled off treble, so if you compare it with SR60e on high notes realism like on "rain" and "applause" sound, the grado take the cake there, but I wouldn't stand watching full season of a series wearing only the Grado, M100, give me 3 and I can finish it in one sitting
, It's made for long use comfort, not critical listening with much detail, so I'd gladly accept this,
Overall I'm very satisfied with this headphone, for the price I paid it for, anyone can walk in and buy a pair for any use, piano training, watching movies late at night, or whatever, with the comfort and sound it has, I feel this is the Porta Pros of Full size open headphone, though sadly Sony's MA series is discontinued now, I think that people need take attention of it when they find it on garage sale somewhere.