ABSOLUTELY LOVED IT! 
 I couldn't put it down! I flew through it and am ready for book 2. =) I loved the characters, the plot, the twists, the love story, everything! I'm hooked. I followed the plot easily even with the multiple jumps to multiple parallel dimensions. It is an exciting concept with a love story thrown in...wonderful and beautiful. (view spoiler)[The happy ending doesn't hurt either, I'm a sucker for those. (hide spoiler)]