Bluesound Node 2

I'm a complete newbie in the digital space, not counting CD players of course. I'm also on a path to upgrade my system from other various angles, mostly preamp and speakers. All that said, I'm currently using a Bluesound Node 2 with a hifi Tidal subscription. No computer files or hardwired USB connections. My first question is where does Bluesound fit in the digital wireless streaming quality hierarchy. And a related question is what would be a good upgrade path, again assuming only wireless streaming as the source. I see a lot of high end DACs out there, some several thousand dollars and wonder if those are only used for connection to a laptop and running computer hirez files, etc. Not a whole lot about wireless streaming. All in all, some guidance in the digital wireless streaming space would be appreciated. Thanks.