My disty gave me a heos link to try for a few months. The first one he gave me was aweful, kept kicking up, required constant reboots and didn't integrate quite right. He then gave me a version two and all those issues went away. Integration with C4 is almost identical to how Sonos used to be. I integrated it with my Alexa and was able to turn music on (via Bluetooth) when I was in the other room, my fiancée loved that feature actually!

Overall if you are going todo heos and integrate it with C4 or other platforms I think it's a viable option as long as your clients don't use Spotify (which most of mine do)

However, as a standalone system the app is horrendous, the setup is goofy and took me 2-3 tries on each of the links I had to get it to take my information. Again my statement still stands that after almost 15-20 years that Sonos has been in business we still do not have a viable alternative option that gives us source options and an app that is seriously one of the best apps....