FYI…Tidal is dropping its prices starting in April. $10.99 per month.
As to sound quality, I found it to vary based on streamer. If you’re running Aurender then Qobuz will sound slightly better. Tidal still sounds good and has some music that’s not available on Qobuz. With Lumin and Bricasti I found Tidal to sound a bit better.
It’s worth having both if you can afford it.