Qobuz is so worth the money. I do a yearly plan and it's the best entertainment money I spend all year.
I have Qobuz on my PC for convenience and when I travel but I seldom use it. While the USB connection to my amp sounds OK it doesn't compare with the sound quality of my Bluesound Vault. A stand alone streamer is a good purchase. I have an Aurender in my main system, the Vault in system two. Both are great for what they are in price/ performance
I value George's advice with respect to upgrades and how to avoid lateral moves. I think he is spot on with the cost / investment of each component in a system.