Yamaha and other AVRs have their own streaming/whole home applications similar to Bluesound. It may depend on the other needs in your system. If you need or want an AVR, you might consider them.
I have a Bluesound Vault 2 in my 2 channel system, the Node 2 in my surround system ( the Node doesn't play in surround), and the Pulse Mini in my kitchen. It is great to be able to move around the house listening to music but the Pulse Mini was not a good deal--$500 for a glorified boom box. So I wouldn't consider Bluesound Powernode
I have a Bluesound Vault 2 in my 2 channel system, the Node 2 in my surround system ( the Node doesn't play in surround), and the Pulse Mini in my kitchen. It is great to be able to move around the house listening to music but the Pulse Mini was not a good deal--$500 for a glorified boom box. So I wouldn't consider Bluesound Powernode