I enjoyed your review, particularly because I own a Nio (which I use with a M15 module) and I was curious about the Volur. I only use iems for “fun” listening when I’m out and about, as I’d rather use headphones at home, so I absolutely love the more flavorful sound the Nio has. Even thought the Volur wasn’t for you, I appreciate all the comparisons you made, which made it easier for me to figure out if the Volur might be for me.
Do you list your test tracks anywhere? I think that would provide some added context to your reviews. I like the fact that @SenyorC always lists what he’s listening to in his reviews, because I can try them myself, and see if I hear what he’s hearing on my chain.