I bought the HarmonicDyne Zeus about a month ago and want to share my impressions:
I got them as an addition to my Focal Clear. The Clear are excellent for music. But I found them a bit too analytical for gaming & movies, missing the broad sensation. Therefore I was searching for headphones with a wide soundstage and warm sound. Didn't want to go full on premium again, so they had to be relatively "cheap". After watching the review from DMS, I ordered these for a bit under 300 bucks. Took them three weeks to arrive.
As you can see, packaging is great, but nobody cares about that after 5min.
The built: Thick and "fluffy" earpads, very soft and cushy. They look pretty nice in person with that wood . Those metal grills are rather sharp. The earcups are very flexible, the built quality is overall good. Not totally premium, but fine.
Comfort: As I've said,. they feel very soft. They fit well and dont generate a lot of pressure. I find them to be comfortable, but not incredibly so. They are not bothersome in any way and I can use them for hours. I was pretty surprised though when I switched between these and my Focal Clear. The Clear weigh 450g, while these weigh 380g - 70g less. But the Clear somehow feel way lighter, because of their superior design and weight ditribution. This of course being an unfair comparison as the Clear are way more expensive. Overall comfort of the Zeus is still good.
Sound: I tend to like natural sounding headphones. This still has a well balanced sound, but it's on the warmer side. They are enjoyable to listen to. Good bass response, not overwhelmingly hard slamming, but with a good presence and still strong impact. As to be expected, the details and "structure" in the bass are not that great - that's normal for that price point. Soundstage is wide, which in combination with the warm sound signature, makes them a very good choice for gaming & movies. Very good sense of scale and great positioning of the individual sounds. Especially the city in Cyberjunk sounds great - as DMS has also pointed out. Details are fine, not that pronounced or clear, but competitive in that price segment.
So even if you buy these just for music, they are very good sounding headphones. But I would rather recommend them for entertainment purposes, that's where they really shine.
I'm satisfied, they perform as expected.