I suggest that you don’t limit your experience to ‘high res’ files. There are plenty of files at CD res (16/44.1kHz) that are excellent. Just grabbed the tablet and explore the vast catalog of playlists and albums.
If you want to experience best sound quality and high resolution files upto 24/192kHz among cloud based streaming services, I highly recommend signing up for a free 30 days trial with Qobuz.
And then there is ‘optimization’ of streaming setup. I won’t burden you with all that now, there are plenty of threads here for you to educate yourself on how to get best SQ out of Node.
Enjoy!