I have an eversolo A6ME with Pd Creative linear power supply. 2nd streamer is a bluesound Node N130 with external top of the line Pd Creative linear power supply. Preamp is Advance Paris Xp700 into an OAD power amp which is a very clean and musical power amp. All interconnects are Audioquest Colorado. I have 2 servers, 1 being a NAS and the other being an HP pc with dual Raid drives.
I have hard drives on all devices and can access my library via roon, or onboard software such as blueos or eversolo depending on which device I wish to use. My main streaming software is Tidal.
I'm a fiddler and tweaker. Also I'm a musician who's gone through the process of buying and selling over 50 acoustic guitars to get to the perfect dozen for my collection. I'm the guy who hears minor differences when changing cables etc. I'm not interested in an aguement or discussion around science disproving cables making any difference etc. This is about roon.
I agree with a couple of posts here which state these characteristics of Roon. Having listened to Tidal connect for years I'd say it is a very large and warm sounding platform. Bass is full and the sense of space air and depth is very good. The Bluesound is a slightly plumper, warmer but less detailed presentation when compared to the Eversolo. The Eversolo informs you more but it's bass isn't quite as full as the Eversolo. The Bluesound sounds a touch more vinyl-like. Enter Roon into the picture.
Roon sounds different when coming off the NAS or HP server. I've found the HP server is a bit fuller and warmer when playing my hard drive library. I have no idea why this is. Could be that the NAS goes through powerline adaptors to the network and the HP server uses high speed wifi. I'll get to my point about Roon's sound.
When playing Tidal via roon, the sound is more focused with a slight push to the mids and highs, in essence, affecting the fullness of the bottom end, which sounds a tad leaner. It also sounds less warm or analogue having removed a sense of warmth and space from the presentation.
I think people like the sound of Roon because it seems to " clean " up the sound a bit, defines it more and focuses the imagine a bit more. However when the bass is messed with, for me the magic can really be lost. For me I want the sense of atmosphere and space in my playback so when any component in my system diminishes that for the sake of more accuracy in presentation, I lose interest. Take a 9foot concert grand recording and clean it up and you'll lose a lot of the body of the sound of the instrument. Such an instrument will push a lot of sound into the air. Roon will tend to sterilize the body and atmosphere a bit. Going back to Tidal connect instantly brings back what Roon has moved. For Tidal in Roon it's still lacking all the features that one needs when using Roon. It has most but not all, so manipulating and accessing your library can be a bit cumbersome. I do like the way it handles my storage library though, which is why I've persevered with it up till now. I've found no other software, other than Plex that can do similar job. I don't think Plex can offer as good a sound though. They've just given us plex connect so that could be the way forward, without actually having to pay a fortune yearly for a subscription.
Anyways, that's my 2 cents ( or 20 dollars ) worth. Many will disagree with my findings I'm sure. My limitation could still be my network, but I don't think so. Is Tidal coming via my HP server via wifi via Roon or are my Roon ready streamers handling it , thus bypassing the HP server? This I don't know. I just know Tidal connect, and onboard library access sounds warmer and less manipulated than with Roon.