Mine arrived today - aI am just starting to put it through its paces, but so far, it is soounding quite impressive. Took a moment to reset the language to English, as I do not read Chinese......
Have a 400G Sandisk card in there, loaded with wav files (I pulled it from the QA361, so I'd have the same music to reference. So far I have used my Sennheiser IE800s, Campfire Solaris, (walk and coffee shop), and at home tried my Final Audio Pandora Hope VI, Focal Utopias, and a quick listen with my Nordost Heimdall 2 wired Meze Empyreans.
The DTR1 drives them all, clearly shows their differences, seems equally at home with each of them. More to follow as I live with it for a few days. No regrrets so far- this thing is what Mim said it is.