i demo'd the newest eversolo dmp-a6 and the bluesound node icon... i ended up sticking with the icon.
app wise, they're both comparable. i will say that BluOS can feel a bit sluggish at times, but overall, it's good/fine.
eversolo has the one up on the bluesound because it can do apple music bit perfect (only airplay on bluesound). i use local files and tidal, so that wasn't a deal breaker for me.
i couldn't a/b them but i preferred the sound from the icon. it sounded more livelier in my system. the icon also has support for DIRAC if that tickles your fancy at all.
another reason i decided to go with the icon is that from reading online, it seems eversolo support is pretty hit or miss (look at their forums).
either one is a great product.