FWIW, a comparison of the Yggy vs the Denafrips Pontus II from a friend that might provide some insight into how the Yggy sounds. Both tend toward a warner, more analog-like sound, but the Yggy and the Pontus are slightly different in their presentation.
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The Pontus communicates more tonal color. The Pontus is better at presenting all parts of the music with balance. The Pontus also presents with more reverb.
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The Yggy is more emphatic in how it conveys pace. The Pontus seems more realistic in its pace.
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The Pontus sounds more relaxed and laid back in its presentation, but has a greater range than the Yggy in being able to convey more or less pace or vary its presentation in line with the emotional intensity of the music being played