It's not that we want to hate it, we really have no choice. But if you search the threads here you'll know why.

1-The hype train claims they are HD800 killers and god's gift to audiophiles yet come no where close to the scaling and maximal performance of an HD800, 009, etc.
2-12 pairs we've gone through all measure differently. Their own QC video shows one lone chick measuring only one side of a driver for half a millisecond before boxing them up to ship out. I'm not even sure she really bothers to look, just sticks it on the mic and if it shows some sort of horizontal type signal that's fine.
3-None of them have cup damping because apparently Beyer marketing believes the 'Tesla' magnet makes the phone immune to resonances, yet all cheaper DT880's that are almost $1000 cheaper have proper damping and better driver matching. Go figure.
4-Many T1 fans tend to believe using metal materials in herring bone patterns makes things sound better automatically. Of course it does....
5-Many people here on many rigs have had issues with the treble mountain. Peaks and mountains tend to sound more offensive. Many of us AB gear at live acoustic performance sound levels at minimum (avg 75-80dB; not peak) so those peaks turn to daggers and only get progressively worse as you crank it.

Hope that helps explain. At $399, you would be able to make a solid argument. At $1300, no flippin' way that phone ever gets on when it's outclassed by the DT880 in a number of relevant ways.

All good observations and measured facts, and valuable for potential T1 buy to read. The lady in the youtube video was obviously checking merely for the soldering/assembling works she was responsible for the DT770. By right the drivers should had been matched before she received. So mismatched drivers was not her responsibility.

And I believe it will be more likely to have a USD399 HE-560 by clearance time comes. The last HE-500 clearance price was USD450.

Looking at the T1 design, I believes Beyer chose to use the fabric mesh material on the driver frame to do all the dampening. On the cup behind the driver, there is actually a circular plastic ring part that reflect the sound wave (which can be replaced with a even lower cost felt if Beyer choose to cheap out). There are also people trying to add dampening felt to T1 cups reported back the image becomes less precise. I guess it is  a trade off, or one can say a fundamental design flaw/limitation.

I was stupid enough to buy one after the hype train on hf a couple of years back. Looking for an upgrade from my Hd600(LOL!). You need muddy tubes and heavy eq to make them listenable. The drivers are matched quite well the problem though is that treble wants to decapitate me all the time...

And then the build quality i mean really? There's something inside the headband that came loose that makes it feel weird, hard to describe and on one side the cup is loose in the hinge which gives it sort of a rattle. And this all happened so quick i can't even sell this pos and thus has been sitting on a shelf for a couple of years. And ehm i voided the waranty by balancing it and then unbalancing it, so if they measure the cable length i'm fucked. So getting it fixed first is not an option either i guess.

Are they doing the design of their pro and consumer stuff seperate? I mean there is such a big difference in quality..

Agreed, i have a modded crack with speedball but on that amp the T1 is easily bested by my Hd800/600 and DT-150. On my other tube amp which is not an otl, it is also outclassed by the He-500. I guess i'm still bitter about the purchase 

Ronnie James Dio isn't coming back from the dead.

I was surprised you did not compare the T1 with the Caparo T1.