I returned the Shiit Yggrasil+ LIM. Its timing was fine with sufficient drive and low end. However the mid-range (and low end) sounded too thick (mellow).
Interesting. To my knowledge you are the first person who has raised that objection. I haven't found that in my system and elsewhere either, also in comparison with other DACs.
If anything, there is the complaint that the Yggy LIM sounds too neutral to some people's taste, and that they would like more (tube-like) bloom in the midrange and lower midrange.
I guess findings may be dependent on system context.
Also it was not really specious sounding and the highs were holding back somehow (playing it too safe).
These two are more familiar complaints. Yet I have not found a lack of spaciousness. Fellow audiophiles admire my soundstage at home, also in terms of depth, and the Yggy LIM did not change that. I also did not find a lack of HF energy from the DAC in my own and other systems. However, with a not quite broken-in unit I did.
So, it seems I need to look into a more direct neutral DAC without sounding too analytical. I already tried Chord Qutest earlier this year which covered a good range of what I was looking for but I always had the feeling it sounded a bit too dry.
All the Best with your search!