Does Roon sound better?

I have Auralic Altair streamer-DAC and use TIDAL wi-fi streaming. It sounds nice.
Auralic Altair is Roon ready.
Worth it use Roon???

Roon doesn’t sound any different. It’s playing the same digital data. 
I found that Linn Kinsky with Minimserver and BubbleUPnP (all freeware) beat Roon for SQ.  I have heard that Roon is better when used with HQplayer but I have not tried this.
I posted over on the Auralic forums what people thought about Roon versus Lightning DS. For the most part folks said soundwise they were equivalent or Lightning DS sounded better. Roon was deemed better for organization and particularly integrating a home music library and Tidal. You can read that thread here:
If you prefer the organization then it’s a grest deal, but to be clear it should sound exactly the same on a device that offers both Room and Tidal directly. It’s processing the same bits in the same way. Once you start adding other hardware and paths then sure, but in this instance I can’t imagine how it would sound any different. 
@mayoradamwest Try a Raspberry Pi with Digione board.  It will play both Roon/Tidal and Linn Kinsky with DLNA.  Linn Kinsky is better.  You can easily do an A/B.
I don’t think you understand what I am saying. If you have a single device that does Tidal and Room, it will sound exactly the same playing Tidal through Roon as it would playing Tidal directly. This was the question the OP asked. 
@mayoradamwest The OP isn't streaming Tidal direct his Altair uses the Lightning DS app which I mentioned in my post. So a comparison of Roon to that app and others makes perfect sense. Great nickname btw.
I get that, but it’s still pushing the same bits over. I guess there could be a very slight difference depending on network noise but I doubt you’d be able to tell. My point is mainly that Roon isn’t doing anything different. It’s just sending the same bits as Tidal to the DAC portion of the device. 

Different server software sounds different.  I can play Linn Kinsky with Minimserver and that sounds different than Linn Kinsky with BubbleUPnP.

All software sounds different. Any software has better sq than iTunes. I liked DS Lightning over Mac mini running audirvana 2.x. Since I replaced my Auralic Aries with external dac with usb to running ps audio DS with bridge with Roon, sq is much better. I can’t do an a/b comparison using roon vs DS Lightning because DS Lightning won’t see the DS bridge. 
I’m not totally sure which difference you are seeing but if the same Tidal bits are making their way to the dac then it shouldn’t matter. It could be one of those two is decoding and re-encoding, like AirPlay does. For th OPs case, sending Tidal data to the dac over WiFi with Tidal directly or with Roon should result in the exact same data stream making it to the dac. 
You really should do more playing with the different software. They all sound different. I stll like and LOVE mpd. Its got the magic!
I've used Audirvana for 6 years because I really enjoyed the sound and thought it probably couldn't be bettered (especially in recent updates).  Last year I tried Roon.  I think it sounds better and in spite of the cost I'll extend my subscription - it's worth it.  I've tried going back to A+ but the difference in SQ has me switching back after a few minutes.  No matter what people in this thread are writing, they're not the same.
@janehamble  Did you try different upsampling settings via iZotope in Audirvana, or did you not use upsampling? Just curious. 

I have Roon, and I also have the Audirvana trial, and I keep going back and forth between the two, trying to figure out which is better suited for my preferences (not a trivial task).  Anyways, Roon's GUI and music mgmt are much better than Audirvana, but it's about the sound right?
@1markr oh yes, I spent many an hour tweaking with iZotope - often diligently following the precision guidance of others, or just experimenting. I eventually moved away from upsampling, as I have done also with Roon.  One major plus of Roon is the ability to toggle so easily between settings, or turning upsampling on or off on the fly.  It makes it so much easier to find the settings that really work with your equipment.