I have owned a Grimm MU-1 since December'19.
At that time the Taiko was its main competitor.
Both units did very well, but I ended up with the Grimm as I could listen to music for umpteen hours (6-8 hour sessions) without any fatigue.
The Grimm does it all in presentation of the music without drawing any attention to itself.
It was my first ever streamer in my system, and its need for not having added paraphernalia like clocks, switches and other components showcases the research that they have done.
Someone did mention that the choice of AES/EBU cable is the most you would need to your musical tastes. I used the one which they used in their factory, which was a simple studio quality 110ohm cable.
I don't have the urge to find any other streamer or a need for upgrade since I have had this unit.
Definitely a must audition unit, as it out does the transport in my Playback Designs player.