Michael_d,
I only somewhat recently started up with streaming music. Already being an Amazon Prime member starting up with Amazon Music HD seemed the way to go. Sorry but I can't compare my experience with another service.
So what do I think of it?
It does what it's advertised to do .It sounds very good through my 2 channel system. Have not tried it in my Theatre yet.
I'm like you , I hear something I like I'll look into that artist further online, most likely ending up buying cd's.

Jeff