I like this whole Nephilim trend, and Sweet Evil was great. I like that she has a lot of good in her, but also has a dark side as the daughter of Belial. It's a really interesting take on angels and demons, and I like that she has a little bit of both in her. I really loved the hierarchy and the mythology of angels. There's definitely a structure as far as demons of hell go, and I loved reading the world the Higgins built. Especially because the whole hierarchy was based on the seven deadly sins (plus a few others). 
 I thought the characters were pretty typical for the story Higgins wrote. I didn't mind, though, because everything else in Sweet Evil was good. In a way, I was reminded of A Beautiful Dark by Jocelyn Davies, and I think it's because Anna has both good and evil in her. I can see Anna needing to choose between two different sides, much like Skye had to do in A Beautiful Dark. 
 Anna is pretty innocent, which was a little annoying at times, because she's such a good person. But at the same time, it was quite nice to see a character who's still pretty innocent. In some way, it's a little hard to believe that she could be so innocent, but I think it works really well. I have a feeling that it may become important later on in the series. 
 The romance was great- Kaiden and Anna make an interesting couple in so many ways. There a lot of obstacles to overcome...if they ever figure out how they can be together. There is a hint of a love triangle, and it'll be interesting to see if Kapono and Anna ever have a thing, and to see how Kaiden feels about that. 
 And as much as I enjoyed Sweet Evil, it kind of felt like something was missing. You get a good idea of how things are, and who the characters are, but it felt a few things could have been explained a little more. Like, not a lot was mentioned about Anna's mom, and I'm curious about her angelic side will play out, and if it'll have a bigger role in the other 2 books. 
 Final thoughts: 
 I really liked Sweet Evil. Higgins definitely created an interesting world in Sweet Evil, and I love the hierarchy of the demons. There are a few things that need more of an explanation, but overall, Sweet Evil was a fun read. It gets 4 stars.