Initial Impressions 5/5/15: 4.5 stars, I think 
 Erica O'Rourke is a beautiful writer. I've been so impressed with Dissonance and Resonance for so many reasons and wow. Those finales are just beautiful. The musicality of the whole book is just phenomenal -- both the inclusion of musical aspects and the way the prose naturally flows. 
 I loved the story from start to finish. I did get a teensy bit lost in the middle of this book simply because there was a little switch-up which was GREAT but it took me a while to adjust to the idea. 
 Must go back and read her first series! Dying for anything else I can read from Erica O'Rourke. 
 Full review as originally posted HERE on The Book Addict's Guide 6/24/15: DISSONANCE really took me by surprise last year and ended up being one of my (many) favorite reads of 2014 so naturally, I couldn't hold out too long when I was approved for a review copy of RESONANCE! I was anxious to dive back in to the main plot of the story and figure out what the ending of DISSONANCE really meant for Del and Simon and I was once again impressed with Erica O'Rourke's crafty plotting and lovely writing. 
 What I really enjoyed about the beginning of RESONANCE is that the book doesn't take too long to get back into the action and the possiblility of what happened to Simon but I also wasn't dropped straight into action without a little refresher. There were also some nice allusions to the pieces of Addie's story in HARMONIC (which isn't necessary to read before RESONANCE but I highly recommend it -- it's helpful for the plot and characters and also because it was just really, really good)! The action stays steady throughout the whole book too. RESONANCE is a fast-paced, exciting adventure but also has some really great tender moments between characters and I really got to know each of them more. 
 I think I was more impressed with the world building in DISSONANCE but don't get me wrong -- RESONANCE is pretty awesome and twisty. There's just a different side to be revealed in this book. DISSONANCE really gets the reader into how Walking works and what the general Consort rules are but RESONANCE is all about digging deeper into why those rules are in place and of course, we get more information about the Free Walkers too. There's one HUGE plot point that really blew my mind and I loved it BUT it also affects the relationship of a couple characters (no spoiler -- what huge plot point wouldn't, right?) and I wasn't sure how I felt about where those two were left. It was actually kind of a good thing in a way. I didn't feel as strong about the link between those two characters but it also opened my eyes to how other people perceived what was going on too. It was a really interesting turn of events, especially assessing my own feelings towards what happened. Cryptic, I know, but when you read it, let me know because I think it's a really neat thing to discuss! 
 I was kind of all over the place with my feelings for Del and Simon. I do love them but there were just so many things going on in this book. And then I was reminded that they've only really known each other for a few months. When you say it like that, it sounds like insta-love a bit but looking back on my relationship with my husband and when we first started dating, we fell pretty hard pretty fast so that's really not an illogical connection, especially when things are so high-stakes. I actually didn't even think about the shortness of their relationship until it was brought up in the book (oops) but it made me stop and think about it for a minute. Of course, though, I still love these two. I really adore how their relationship has serious highs and lows and they really do have to fight for each other. I guess really looking back on the book, I like that there were so many obstacles -- both physically and mentally -- that they had to face because once the book was over, I felt even more secure about their feelings for each other. 
 I just loved these two books from Erica O'Rourke (and novella!) and I'm so, so happy I got to read them. They were just so up my alley with the parallel universes, the musical elements, and the Chicago setting. If any or all of these things appeal to you, I highly recommend this series! These were just so well done Erica O'Rourke's writing is just beautiful.