I joined Qobuz at the highest level, $299/yr., basically because I got into digital hi-res files only recently and wanted to quickly build a decent library, and when you are the highest level, you get substantial discounts on hi-res (over 44.1/16) content. Unfortunately, I have been a little disappointed in the number of selections at that "discountable" level, but everything is still substantially cheaper than HD Tracks, and I’ve saved at least $100 so far (3 months.)
Agree though the sound quality on about everything is excellent, but I don’t find the mobile app very user- friendly when I’m in the car. I’m sure it is still improving all around.