Finally have a lot of burn in time and more time to do a much better shake down of these.
So much of what I said before was spot on previously. These sound overall fantastic. Clarity, tonality, and imaging are all great. Sound stage for closed back is decent too. Comfort they are excellent except being hotter on my ears that most of my other headphones. Not sure why they are hotter than anything else I own, they just are. I am also not bothered usually by hotter headphones, and normally don't sweat around my ears with other headphones, but these make my head/ears sweat after extended use.
The only real con I still have is the bass roll off. About 40hz on down they lose impact. It's not much, but they lose impact and they lose clarity of keeping up with the sub bass if it is very fast. It literally misses notes my 400i, m1060, and many other headsets pick up. I also tested the bass on the tone tester here:
http://www.szynalski.com/tone-generator/
The takstars are definitely not keeping up on the lower than 40hz spectrum compared to my other better bass headsets at the same comparative volumes. Not to say it's horrible, because it's not. Not at all. I also noticed the ports don't do too much either except make the quality of the bass worse without bringing up the impact and adding very little quantity of volume to the bass. Although opening the ports does add some volume to the bass with the last port opening adding enough of a difference to really hear with the first two ports barely making any difference in bass volume. While opening the ports all the way makes the bass louder it really messes with the quality and tonality. Some lower spectrum voices sound like they are coming through a coffee can and it's not a good thing. One port opened at most and the voices don't go all strange. Second port opened and the voices start sounding a bit off. Third port opened and it's full on coffee can sound. So don't recommend really going beyond the first port. While opening the ports beyond the first does make the sound a bit more airy and open, the lower bass just sounds really bad when done so.
Just to add, the hollow coffee can tonality sound change can be heard with even the first port opened, but it is so hard to hear that unless you are specifically trying to listen for it, you won't notice it. So there is that. It's weird how opening the ports hollows out the sound, especially the bass, and makes it not sound so great as more ports open. When I do the same on my Beyerdynamics Custom One Pro Plus, which have the same port opening feature, that hollowness does not happen. It does not lose clarity and get congested sounding like the Takstars do as more ports are opened. They have a different problem to the sound, mainly very loose/rumbly bass and longer decay reactions on the Beyers when more ports are opened.
All in all these are great headphones, but their weakness is their 40hz and lower bass range. Not a big deal though unless you like listening to Bass Outlaws or something similar all the time
If that is the type of music you like there are better headsets for that music in my opinion.
For reference these were purchased from Takstar Audio from aliexpress in December as the full box package.