It does not look to compete with Spotify or Tidal. Why would you try and compete with companies that burn money and make huge losses?
It has been classical and jazz heavy because those listeners tend to be the ones more likely to spend money on a premium subscription and downloads. I read that they get at least 5 times the revenue per customer as anyone else.
About 50% of their revenues are from downloads, so more labels sign up as they make more money on them and that gets them the more expensive Sublime subscriptions, because that gives you big discounts on HD downloads. So the Sublime subscription works two ways - for those who want to stream in HD (which includes an offline library) and those who want downloads at the same or less than 16/44 prices.
The USA will be getting a mature product with a stunning catalogue, quality control, great editorial, album and artist articles and a fantastic software platform (OSX is the best).
Just make sure when streaming at 24/192 you have a decent ethernet connection, not wifi. I also suspect this will kill off MQA, not a moment too soon.

