@Basco since you have asked about TT2 I will share my experiences too.
TT2 is better for cans only, while WL shines in speaker setups too.
As far as SQ and sound signature are concerned those are different dacs: while both are musical (especially when comparing TT2 to Dave and Hugo 2/Qutest) WL cleary wins. The main difference is that all Chord dacs including DAVE are brilliant for critical listening (with exception of original Mojo but including Mojo 2), but in a long term this could be fatiguing - at least for me. With Rockne WaveLight you just listen to the music and enjoy it. WL is smoother than TT2 even when you add M-Scaler to the chain and run dual BNC max upsampling. On the other hand I've played a bit with upsampling on Rockna and found out that I prefer it without any hardware or software based upsamplers.
Filters implementation on TT2 is disappointing in that regard that it takes a very revealing chain to try to hear the difference and even then the differences are minimal and in most cases can be omitted or ignored. WL is quite different in this regard: NOS is very distinctive sounding with most dynamic, less smooth and most sharp signature. Some filters fits better to particular recordings than others. Different settings on volume control also have impact on sound signature in case of Rockna. On TT2 you can listen for you whole life using Filter 1 or 4. The crossfeed on the TT2 is also disappointing for me.
Rockna may need time to warm up to sound best, while TT2 does not (with or without M-Scaler).
Overall if Rockna would be in similar dimension to TT2 I would always select WL over TT2. Otherwise I can see a use cases where TT2 maybe a better option, but in terms of musicality, smooth sound and pure pleasure of music WL clearly wins in my heart. TT2 can have sometimes better soundstage, a bit more air and be better in micro details (but this is very record dependant). As far as instrument separation is concerned both dacs are on par for me. Rocka is more analog without digital glare that you can hear sometimes with Chord dacs.