I have owned a Vault 2i for about three years and its been pretty good for the most part. Some weird issues, most fixed through updates. Occasionally I lose connection with the Tab. All minor things when I think about everything it does.
You have to remember that streaming as a reference 24/96 or better source is still in it’s infancy compared to other past formats.
That said, what the Node and Vault can do for the money is pretty impressive. I have not really had to rely on their support so I can’t comment, but it w a s a great way for me to get into streaming, ripping, file sharing.
I recently got an Aurender N200. It is markedly better than the Vault , but it should be.... you can but 4 Vaults for what it cost. I had a few questions for Aurender, contacted them through the support icon within the machine. They got back to me lighting fast. I intend to keep the Vault, I have my TV connected to it and I can pull ripped discs off the Vault and copy them to the Aurender.
I still think despite a few shortcomings the Node and Vaults are a great way to stream without breaking the bank