I'll say I'm kind of torn on Apocrypha.
On the one hand, I like the general premise. The idea of a large scale conflict with over a dozen Servants is a fun idea for a Fate spinoff. It helps that there's a number of interesting characters on all sides of the conflict, and the dynamics of these teams (both between Masters and Servants) is really interesting and make the two sides feel remarkably distinct. And I'd be lying if I said that getting to see multiple Servants engaging in combat at once wasn't entertaining and a nice change from the usual duel-style fights you normally see in Fate stories.
On the other hand, I think that for being a third of the way through the show, the cast is too large right now and lots of people feel terribly underdeveloped; Jeanne being the most obvious, but a lot of characters on the Red side apart from Mordred and her master just haven't had enough screentime. This specific adaptation also glosses over a lot of particulars about the Fate universe to keep the show's pacing from dragging, which feels like the right decisio but it makes the show somewhat impenetrable for newcomers. And this might seem petty, but while I enjoy the fights even if they don't have the same kind of spectacle as ufotable's, the environmental art for those fights has been incredibly dull (dark forest, dark plain, dark non-descript alleyway, etc.). It makes it hard for Trifas (and Transylvania in general) to have the same sense of place that Fuyuki did in Zero and UBW (that probably has something to do with Apocrypha being a LN where as F/SN and Zero were VNs).
I'm still enjoying watching Apocrypha, but I am a disappointed by it in some respects. I can only hope this gradual start will have some significant payoff before the end of the first cour.