They're really consistent, and work well against most decks. They are a little confusing since they have so many effects going off at once, but it increases the decks skill ceiling because there are so many options to choose from and most of the time there isn't a single "correct" one.
Midrash and Nephilim also bring a very unique ant-meta aspect that I really like, and are nearly unbeatable by some decks.
I also like how you can splash so many different cards with this deck, you can bring dark world dealings/dragged down to increase discarding. You can also add Spellbooks to the mix, and overall deckbuilding with them is very fun.
I do still hope they won't get more support, since that would probably break them, since they're already very good.