Channels DVR works perfectly with multiple HDHR Primes, and I only use TVE for a few HD Channels that aren't available with my cable cards.
I also have a couple HDHRs to use with my antenna and really like being able to record Pluto TV channels. I find myself watching a lot of Pluto TV since Channels makes it watch live and pause and rewind and skip through commercials once a live buffer has built up.
I suppose I will use Channels DVR less frequently once Comcast stops supporting cable cards but until then this is the best DVR solution besides my two Tivo Roamio Pros that other family members mainly use.