This system never even hit my radar at all. I'm a Parts Express fan, and the short lived nature of this product indicates that it was underfunded and didn't earn enough profit, or generate enough interest to matter. This is problematic, because in reality, the most important aspect of all of these systems isn't the hardware anymore, it is the software.
There are some whole house solutions from Yamaha, and Denon, but really, it is the Sonos products and maybe the Bluesound products which take center stage IMO. Sonos is relatively cheap comparatively, but still likely cost a good deal more than what Dayton was selling. I have no idea since there is no pricing available on that stuff and not a single product on eBay (how is that possible?).
I'm not sure what amplifier you are using for your audio, but Sonos zone players, the Sonos Port, or the Sonos Amp, can get you individual room playback with a LONG list of streaming services available. Not sure if you have multiple users and need a bunch of separate units, or if you have a multi-channel amp with a proper source selector available for those different zones.
My system, by example, only has a single Sonos Port, then I have a ton of other sources available to my rooms. I have 20+ zones of audio and up to 16 sources available. I use an app and pick a room, and a source for that room, and can adjust volume for that room. If I pick Sonos, I jump into the Sonos app to control the device itself. I don't have 2 or 3 players, just one, so I listen to the same thing on it everywhere I listen to it, but it works well in my home. I also can choose to use Airplay and stream straight from my phone if I want, or I can listen to one of my other audio sources. It works just fine for MY needs.
So, what comes after your Dayton pieces matters. Do you have individual amps for each room? Do you need amplification? Was volume control for the rooms a part of the app you used?
I think you likely are going to have to pay more to get a solid solution. Certainly it is clear that what you had never quite worked right. I can say that I NEVER reset my Sonos or my Crestron systems and they work 100% for me. Always work. Every time. Anything short of that is, IMO, unacceptable. I could maybe deal with resetting things once every few months, but that's never been my experience. I press play on my Sonos and it plays back. I know there are some that used to swear by Chromecast Audio devices, but then they also said they had to reset things from time to time. Some do use Amazon Echo products as well. Not something I've integrated directly into my system (though I could add it). So, you have some options, but it depends on what your complete system is and what you need to have happen.