Spotify vs other streaming services

I just re-joined Tidal to hear the situation for myself.
YES! There is a big difference in SQ!
Now what am I gonna do with all my CDs?
Well, I still have records.
 
Thanks to all for alerting me.

Upon AB ing Tidal with identical CDs played on my transport (both plugged into the same DAC) I find the quality slightly, but importantly, better for classical, in the CD.
Still and all, the Tidal is very impressive.
 For casual listening I’ll  stream, but for maximal musical enjoyment, I’ll probably stick with the CDs.

Tidal is excellent.

@rvpiano

The difference could be your DAC input or SPL level or different masters. Not all DACs are good at jitter rejection for example and therefore the source can make a difference even if the bits are identical.

@uberwaltz. I am frustrated as well.  Quobuz latest publicity states they will be here in the Fall.  I did play with it while visiting a friend in Paris last year and it is worth waiting for.  In the meantime I will stick my my CDs, SACDs, and use Spotify to sample recordings.

@rvpiano. 
Congratulations and shows the value of asking for members opinions here. I used to think Tidal and my CD replay were near identical with on some cuts Tidal having the edge. However I since acquired an older model Pioneer SACD player and this turns the corner with most CD/SACD now having the slight edge over Tidal streaming but it is a very close call and as you have found not even close to Spotify.
I think you will be happy with Quboz when it finally arrives as it is supposed to have a very well sorted classical and jazz catalog.
For now ENJOY!