I have had Tidal for a couple of years and Qobuz for the past month. I signed up for a year of Qobuz after the free trial. I agree with @jjss49 who said:
i think both services sound very good, though subtly different
However, I would not ascribe a consistent sound to the difference in that I couldn't say Qobuz sounds like this and Tidal sounds like that - just a little different, maybe. At at this time, after only a month with Qobuz, I would not definitively rank one above the other based on SQ, although I am enjoying having more content to choose from. I will likely keep both but wanted to give myself the year to decide.