So I have to say I enjoyed this more than Fallen Angels, if only because I did become more attached to Clary and Jace. But also, I loved to hate(view spoiler)[ Sebastian. (hide spoiler)] His scenes with Clary just sent chills down my spine, and even when she started maybe warming to him, all I could think was how much of a wonderfully constructed sociopath he is. I loved Simon and Clary's friendship, as well as the sibling love shown by Alec and Isabelle that really warmed my heart. But also? The epilogue? Alec's whole subplot line? Crying. Couldn't grab Heaven Fire fast enough because of reasons. Up one star from Fallen Angels because I did start warming to the main characters, and they didn't annoy me as much.