I have used Teufel devices in the past and they worked well enough. But I have since switched to a selfhosted alternative. Stupid speakers (in my case old 2nd hand stereo systems), raspberry pis and the Lyrion Music Server.

You get all the benefits of commercial internet enabled speakers (the project used to power Logitechs speakers before they open sourced it) including multi room audio, various streaming service integration (both Spotify and Qobuz are supported among others) and solid app support as well as the privacy that comes from not relying on an external server