I wouldn't recommend refurbed Bluesound gear. I got my gear previous generation for the discount (wasn't even aware it was refurb), and I've had an annoying amount of trouble. My Power Node is now hardwired, because it keeps dropping the wifi so bad it requires set-up. My two Flex sound lovely when they are working, but quite often (like at least once per party) they vanish from the app, or better yet, cause Roon to keep trying, failing, and skipping every track in the playlist. Might be Roon, might be the Flex. Sucks because they are grouped, and the music could still play from the other seven speakers around the house. Might be a Roon thing, but never happens with the $100 hifiberry that is also connected on wifi. YMMV. When they work, they do sound lovely.

Cave: Trinnov Altitude CI-8; Oppo 203 Vanity HD; 6xDSP5k, DSP5kC, D1500; Sony Z9D, PS5 Pro; Apple TV 4K
Living: Wiim Pro; Rega Planar 1+; 2xDSP5k
Master: Wiim Pro; 2xDSP3100
Kitchen: Bluesound Flex stereo pair / Amazon Echo Studio
Deck: Wiim Mini; Random Chinese Class D; Cambridge Soundworks Outdoor 52s; Polk Sub;
Garage: Wiim Pro; 2x5k