I have been using Bluesound gear since 2014, have a Node 2i in my main rig, and a couple of first generation Bluesound Nodes and a Powernode in use elsewhere in my household.
What I like about the node is its ease of use combined with its flexibility. I think that the BluOS interface is the next best thing to Roon (and far more affordable), but if Roon is what you are after now or in the future, the Bluesound gear are Roon ready. Android, Ipad, PC, Mac, all can interface with BluOS.
As to whether to go wired or wireless, all things being equal go wired. My experience is that a wired connection makes for a much better experience, especially when it comes to streaming Tidal.
One relatively easy way to support a wired connection, and one that I use in my house is the employment of powerline ethernet devices (I use Netgear).
The Bluesound internal DAC is decent, and certainly listenable, but if you really want to kick things up a notch (or much more, the sky really is the limit), then down the road think about investing in an outboard DAC, which you can connect to via either Toslink or Coax. I utilize an outboard DAC in my main rig. Beginning in 2014 I was using a Bryston BDA-1, and more recently upgraded to a Chord Qutest. Again what I most like about the Bluesound kit is its flexibility.
Re MQA, I'd look at it as icing on the cake, and not the main event.
One of the nice things about the Bluesound gear is that when used with an outboard DAC, the Bluesound device will handle the first MQA unfold. This gets you as far as 96K. With a capable outboard DAC such as the Bryston or Chord, there is no comparison. Music via a DAC of this ilk, in my opinion, with or without MQA will get you much greater SQ. But then this should be expected given the differential in price point. But all the same, the Bluesound will get you in the ball game, is very listenable on its own, and provides a path forward should you desire to take it.
Good luck with whatever you decide.