Got mine a couple of days ago. Pairing them with the Kanas Pro's -- these things kicks a$$!
I haven't tried BT, but have been streaming from Tidal for a few hours. Had the occasional hiccup, where it would start 'stuttering', ... and then the music would stop, and it would appear to be buffering before it starts again. Happened a couple of times - but the sound quality from Tidal is pretty amazing.
A little off topic -- but I am hunting for some new cans. I really like the reviews of these:
https://drop.com/buy/massdrop-x-hifiman-edition-xx-headphones#overview
Am just wondering, if this little thing can power these by itself, ... or if I'd need an amp to boost it?