I’ve been using Channels DVR for a couple of weeks within the 30 day trial period and still getting familiar with all of the features, the interface has been the Apple TV device. My analysis and comparison are based on my current whole-house DVR system which is a Windows Media Center setup that has worked well for many years with few issues. Windows Media Center with the HD Homerun configuration allows you to view all of your subscribe channels including the recording of DRM channels.
I’m not sure if I’m missing something in my configuration with Channels but is there not a way that you can continue to watch live TV when you select the guide to view other channels or your recordings? I’ve noticed that when you are watching a broadcast and want to access the guide the current channel stops until you select a new channel or go back to what you were watching. I tried searching the channel forum but could not find a clear answer. Within the WMC environment, you can access the guide, view your list of recordings and other areas while the show your watching or music your listening to continues to play until a selection is made.
There are other features that WMC still outshines Channels DVR however, I do give major Kudos to the developers of the Channels DVR application. I’m sure if Channels DVR had the monetary resource’s that Microsoft had to develop Windows Media Center Channels DVR would be a much more advanced application. Not sure if I will keep the Channels DVR before my trial expires currently I have 117 DRM that I cannot access which is also not available on the TV Everywhere side as well. I will continue to monitor the forum and I can provide feedback if needed.
I've attached some screen shots of the Windows Media Center environment for point of reference








Thus our setup has 5 devices: 1) a 4K TV, a Yamaha DSP AVR w/5.1 speakers, a Apple TV 4K, a Windows PC NUC w/1TB SSD and a Harmony Hub.