If you’re going down the Bluesound route (and there’s plenty to commend it), just be aware that not everyone has had success in keeping their Bluesound zones in sync with other RAAT devices via Roon. Syncing between Bluesound devices seems universally fine when first configured via the Bluesound app. So, if you’re a Bluesound household you’re fine, but it has the potential to be annoying if you expand to other devices later.
Several threads on the forum, I’d do a search - see for example The sync issue..how bad is it? . There’s also 2 much longer threads. The upshot is that Bluesound have not done a Roon-related firmware update for their devices since Jan 2017 and it is likely that this would resolve the issues.