Shrugs.
I enjoyed 80% of the documentaries and the ones starting Simon were quite spectacular. I really enjoyed the way he not only talked about the bike (look ate, I am on the bike again, oh how tired I am, I wonder if I will make it) but he really talked a lot about the geography and history of the places he rode through, all in a highly entertaining way.
I will miss those.
I also enjoyed watching the downhill MTB races rather a lot and had the road racing on in the background sometimes.
But on the whole, I won't get any other subscription (D+, or whatever else). I was happy paying and supporting directly for GCN+ but I don't bother with any other channels. So I'm out (unless GCN does something else).
A quick word on GCN on YouTube: they are good sometimes, mostly ok. But I really make the time and effort to watch Simon and Dan on their weekly shows. Manon is a good presenter too and the other guys are good with bike specific trivia.