My first streamer was the Vault 2i and it's been great but since launch it's gone up $500 and it's getting a little long in the tooth. That machine is now in my second system having been replaced with an Aurender N200.
When the Vault dies I'll be replacing it with the Icon. Bluesound gives you a lot for the money. Aurender build quality and support is in another league but that is reflected in the price.