I struggled just only a teeny bit for the first half of the book as I found it a little less than easy to connect with the characters yet. But second half onwards, I quickly picked up the pace. The adventures suddenly became so engaging and I was enjoying every second of it! It's sooo good I couldn't even bring myself to stop, afraid of losing the momentum. The setting is what made the book pleasantly unique. Those different-coloured Londons easily sucked me in. I've always liked the idea of London. It has always been one of my personal dream destinations and this book and its creative imagery of its worlds proppelled me to be enraptured by the city even more. 
 I loved Kell and Lila, notwithstanding my sentiment of the book's first half, loved their oddities and how they stick with each other till the end. These partners-in-crime ought to be a couple or something! But well, I was just honestly glad the romance wasn't overdone. It was rather fleeting even. I liked it that way. 
 I was initially planning to read other book after this but screw it. I gotta jump into the second book asap! I've not a single inkling of what may happen in the next book and I want to know what other tricks the author has up her sleeves.