I had some time to evaluate Roon 1.7 this morning. I am overall pleased with this release. The interface responds better / faster. Functional improvements I like are improved scrolling capability on small devices like an iPhone and access to more features from those, for collections consisting of multiple albums you now have the option to list all tracks on one page, the live radio feature allows browsing radio stations, though I'm not likely to use that personally, new track discovery /exploration (valence) is interesting, the suggestions of what to play / suits your taste are better.
The sound quality is a big plus. The Roon announcement includes this:
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Now streaming from Qobuz and Tidal has indeed improved, but local storage file playback has improved even more. There is just a touch of relative more warmth to Qobuz and Tidal due to a stronger upper bass section. It makes it very slightly less neutral then local storage playback. The delta for transparency and fine detail rendering is bigger for local storage then it is for Qobuz and Tidal. Now don't consider this a negative thing as overall the sound quality is up for all sources.
My notes regarding overall sound quality improvements:
There is a big plus for dynamic differentiation, both macro and micro dynamics have improved and the transitions in ramping up/down are smoother. The music flows better, sounds more continuous. There is an overall increase of suppleness / agility which, combined with increases in air, transparency, texture rendering quality and micro detail, creates a more natural / believable experience. Sound staging is better, more 3 dimensional, more holographic, better focus and decay is rendered better. Clarity and transparency are up. Altogether it sounds more alive, it is better at expressing mood or conveying feeling, it is just more musically engaging.