want to ditch my Brooklyn to streamer..thoughts?

I am glad to hear your Vault2 doesn't share the same issues. The Bluesound rep saying they needed to be allowed remote access to my home network to fix that 'temporary storage mode' issue was the final straw for me after the other frustrations. Maybe I had a lemon, or maybe the unit/OS behaves when the music is stored on an integrated drive, like your Vault2, rather than on a separate NAS over a hardwired network? (I have a Synology NAS that stores my music files). Anyhow, I was really keen on the unit as a way to stream Tidal to my system along with the ability to have my own FLAC library all easily accessible in their app. For the latter I ended up using newest JRiver (+app) which serves the same purpose of sending my FLAC to receiver as a DLNA device. As for tidal, they lost my subscription money as I went back to using Spotify for streaming (still hoping they will launch a full high res option, but it sounds ok for now...not quite as robust as my Tidal tracks while I had the Node2 but not bad). 

I have no doubt that someone out there has made the Node2 work for their setup, but definitely I had issues with mine so this is just meant as a PSA that if you get one, be sure to put it through its paces (and make sure it doesn't have issues described in my case) before the return window is up!

You could be right that the internal storage the vault2 has is the main difference and could definitely be the key.
Very good point I believe,be nice if any other Vault2 owners could chime in.

Those of you experiencing hiccups during play with the Node2 and using the WiFi connectivity, I strongly recommend to keep it as far away as you can from your TV or any other device that uses a remote control, preamp, integrated amp, or even your (external) DAC if it has remote control volume adjuster. In my experience, the remote control devices (can) interfere with the WiFi signal going into the Node2. Just as an experiment, point your device remote control to the front of the Node2 and lower/increase the volume and watch the blue light and watch and see if it flickers. For me, its 100% repeatable and every time I lower the volume on my TV the light flickers the signal gets lost. It might depend on the type of remote control you have but its a simple experiment and you can simply rule it out or in. I discovered this by accident and I no longer have the TV on while I play music through the Node2.

@kalali, very interesting post.
One thing I noticed on the Node (first version- I don't know if the Node 2 is different), is that it only runs on the 2.5ghz band. I went with a Netgear wireless converter to get it to 5ghz. The 5ghz band is almost empty in my area, so I find connectivity much more reliable.
B

One aspect might be worth looking into is hooking up the node or node2 via hard line not wifi.
Bluesound did not even give the vault2 a wifi option.
Just a thought......