It was a satisfying end to a trilogy. I don't know how City of Glass can be better than it is. It's reminiscent of Yuyu Hakusho (what with the demon window opening in the sky and all), and Angel Sanctuary (what with the incest. when she mentioned Angel Sanctuary, i knew
that was Cassy Clare's inspiration). Generally, the Mortal Instruments series gave me a feeling of nostalgia for anime.
What can I say? I just love anime, and I love Cassy Clare for loving anime.