Yeah, I liked it. Not the type of horror style he has done earlier, more the slow inexorable grind towards bad outcomes. I liked how it set up magic as life; arguably more interesting and applicable in this case than magic as sex or magic as drugs. And Swamp Thing was way overdue for a story focusing on him. He has arguably been the least useful member of the team so far, both in storylines and in what they get to do.
Given the teasing about Floronic Man hunting Poison Ivy in the coming Harley Quinn and Poison Ivy title, this feels like a pretty strong setup for that as well.