Don't judge a book by its cover. Or its title. Here we've got a nice story, deeper than it seems at first sight with a lot of twists and turns. What begins like a cliche (the elevator scene) rapidly evolves into something more. 
 The H/h are both lovable and sweet, especially Dex, who is the epitome of what a contemporary romance hero should be: intelligent, tenacious and fun, masculine without being a jerk. His other qualities are a bit stereotypal. You know them all from numerous other books: extremely handsome, rich and powerful... (yawn). 
 Paradoxically, in a novel based on deceit, he appears to be an honest guy, overwhelmed by a lie that quickly snow-balled into an inextricable situation. 
 In short, this novel could have been named <<lies and consequences>>. With the same theme, we've got almost two books in one : the first part is hilarious and fast paced, while the second takes a new turn and has a more serious tone. At the end of part one, this would have been a 5 stars read for me. But part two shows some overextended angst and a most predictable ending (due to the obligatory HEA of romance, there was only one issue possible). It lacked to convince me, even if the plot was quite original and the style brilliant. 
 4,5 stars.