I have fairly eclectic taste in music, but within my collection I have had no issues. I suggest that if your dealer can lend an Innuos you try for yourself. Roon give a 14 day trial, but Innuos support gave me a 60 day trial code.
If you already have a ripped collection of music on a NAS just attach it to Roon and leave it to identify the music. Use Roon’s metadata as it is much richer than other sources and allows Roon to suggest similar music to play once your playlist is empty.