Yes they can link (that was in the original review) and yes they can stream all those services and my library. Sure some things missing are MQA and airplay 2. No doubt there are other differences as well.\n\nThe sound quality is excellent with the yamaha wxc50 preamp in my main stereo rig and the yamaha wxa50 amp in my bedroom. I couldn't agree more that the value lies in total capability which is what is so cool about music cast since you have so many devices (stereo receivers, integrated amps, AVRs, and powered speakers) that have it.\n\nBy the way, we all need to make buying decisions without actually trying a product based on things such as price, specs, etc. All I was saying is that there are reasons that somebody might pick yamaha\/music cast over NAD\/PSB\/bluesound. Not saying that bluesound isn't excellent; it likely is. What I am saying is that yamaha music cast has an excellent sound quality, excellent functionality, and there are a lot of really great devices that have it built in which is why I went with it.