Wasn't until the very last few episodes that I realised who the demon was in. So many possibilities and the writer did well to conceal it whilst taking us through multiple possessions and torment.
It is quite a scary story at times with mild gore... tbh I prefer horrors that are psychologically frightening, relying on atmosphere and tension, as opposed to gallons of blood and guts.
Loved the cast and most characters.
Sometimes a few of the smaller support characters were a bit overacted. I also found the constant doubts toward one another's advice and thoughts, by the main 3, a bit irritating at times (mostly further into series, when ecperiences should have taught them better). Plus, they individually went into situations, alone, when anyone in their right mind would have held off.
I liked the soundtrack too and found a scene in the last ep quite moving.
As there was often a lot going on in terms of a shifting demon and its side stories, I think it would also make a decent rewatch, which I might one day, with a friend :~)