So I gave a listen to Audirvana yesterday. UI is still lacking. Audio quality is on par or better than Roon (didn't have enough time delve really deep into it).
Audirvana has no EQ built-in (EQ plugins must be purchased separately from 3rd parties). And for those who care, Audirvana has no ability to EQ MQA (while Roon definitely does). Also kind of annoying, but Audirvana Studio (streaming services enabled version) only has a subscription model availiable.
Yes, Audirvana has a terrible UI. It was designed by someone who thought that playing the tracks properly was the most important thing. I'm actually surprised that the best sounding audio-file player is not just a command line only one-file-at-a-time audiophile miracle. HQPlayer is second best, to me, and it's UI is even worse than Audirvana's. Don't even suggest a command-line only option to these people, because it's true, it would be the most transparent way to play a track.
Roon was designed to be the player that plays music for everyone in the world in each room that they're in, with big album cover's to look at, and all the write up's there have ever been about each band. People who start off going for that don't usually think player's sound too different from each other, they say they all just play the file, so there can't be anything wrong with that. Their plan is to win the player wars by having the most features while playing audio.
I'm currently using Sonarworks Systemwide output in Audirvana to EQ my headphones better than anyone could by ear. Hey, you're great for complaining that there's no way to EQ with Audirvana; I just tried using the vst plugin version instead of system-wide, and it's auto-changing my dac's resolution, to match what the track is recorded at! The system-wide driver stays at whatever you set it to. Now I'm totally happy with my EQ software. Anyways, you can have EQ'd playback in Audirvana with either a system-wide virtual device, or using a VST plugin. I know Sonarworks was 99 Euro's, you'd prefer something free.
ToneBooster's Morphit is another one with headphone presets, and is only 39 Euro's. I should try comparing it to Sonarworks, because one will be better. I'll pay another 39 Euro's for something better, if it comes along. I don't think anyone will be getting a good average headphone profile measurement selection for free, unfortunately. If you're streaming MQA from Tidal, it will still EQ that also, no problem. Too bad MQA is a scam. You can prove it by having Qobuz also, and comparing two supposedly higher resolution copies from each streaming service.
Yeah, Audirvana's streaming services version is subscription-only. That's the way stuff with online components' creators prefer it, because they have to make adjustments to the programs to keep them up to date with what's online. I would have bought the local-file player only version anyhow, but if I can get the same program to play my steaming service, that's too good to be true. Except that it works, and it is true. (That's why self-control is important, for when 'too good to be true' actually is true!).

My only interest in a player is getting the best sound. The players that streaming services have been offering so far have been junk compared to the standalone players. Tidal's was the least bad, until Qobuz came to my country. Their player is actually not too embarrassing, and supports the non-exclusive WASAPI playback that programmers are catching on to as being possible, so I can get music playback during gaming if I want it. The launcher for one game has a makes a ding bug while I'm kernel streaming, so it's probably just a matter of time until ks doesn't lock up your audio device, also. I'm waiting for the programmers at Microsoft to understand that all audio could be kernel-streamed, and that could keep consumers from having a reason to prefer Linux or Mac. Hopefully they'll realize it soon. I submitted the suggestion to Microsoft the way they let you, on their site, but who knows who reads those suggestions? Most people aren't audiophiles, they think if the tracks play, it's working perfectly.
But seriously, don't talk about command-line-only, 1 track at a time playback. Someone can make the best sounding player that way. If you are looking for a multi-room multi-user friendly, feature rich program, you probably won't like the best sounding players.