In "Handling Mr. Harper," Elle Nicoll ventures into the bustling world of contemporary romance with a narrative that is both compelling and refreshingly witty. This novel not only explores the convolutions of falling for someone who seems ostensibly wrong yet feels unequivocally right, but it also threads interactions that showcase the deeper aspects of growth, vulnerability, and compromise in relationships.

The story centers around Rebecca Chase, a gifted marketing consultant in New York City, who encounters the enigmatic and compelling Jackson Harper during a pivotal career move. Jackson, successful and seemingly unapproachable, is known for his sharp business acumen that leaves little room for personal entanglements. Rebecca, initially intimidated yet intrinsically drawn to Jackson, finds herself negotiating not just a crucial marketing project but also the complex dynamics of their burgeoning relationship.

Nicoll’s portrayal of Rebecca is both robust and endearing. She’s crafted as a multifaceted character, balancing professional ambitions with personal dilemmas. Rebecca’s internal monologues provide sharp insights into her fears and motivations, making her an accessible and relatable protagonist. Jackson, on the other hand, with his initial portrayal as a typical corporate shark, undergoes nuanced changes that gradually unveil a more tender and uncertain side, thanks to Nicoll’s adept character development.

The chemistry between the protagonists is palpable and realistically developed. Nicoll wisely avoids the pitfall of instant gratification, which plagues many contemporary romances, and instead, she opts for a slow burn. The interactions between Rebecca and Jackson shimmer with tension and potential, making each encounter charged with significance. Their dialogue sparkles with banter that is as sharp as it is revealing, providing substantial depth to their relationship and individual personalities.

Beyond the romance, the novel delves into themes of personal integrity and professional pressures. Rebecca’s journey reflects the real challenges faced by women in high-stakes business environments, such as asserting one’s worth and balancing assertiveness with likability. Nicoll handles these issues with a deft touch, intertwining them seamlessly with the central narrative, thereby enriching the story rather than detracting from the main romantic plot.

One of the highlights of Elle Nicoll's writing is her ability to create secondary characters that add essential layers to the narrative. From the sassy best friend to the wise mentor, each supporting character feels necessary and impactful, enhancing the main story arc and providing breaks in the tension that build around Rebecca and Jackson’s relationship. This effective use of a supporting cast not only fleshes out the main characters' world but also provides additional viewpoints on the novel’s central themes.

Stylistically, Nicoll's prose is engaging and fluid. Her descriptions of New York City imbue the novel with a vibrant backdrop, turning the setting into almost another character that interacts with Rebecca and Jackson’s story. The city's energy mirrors the high-octane pace of their developing relationship and serves as a constant reminder of the stakes involved in both their personal and professional lives.

The narrative does tread along predictable lines occasionally which might not appeal to readers looking for groundbreaking twists in plot structure. However, it is precisely this adherence to some of the beloved tropes of the romance genre that will satisfy many romance enthusiasts. Additionally, Nicoll’s attention to emotional authenticity and character depth ensures that the story remains engaging and heartfelt throughout, addressing predictable elements with fresh dialogue and character insights.

In essence, "Handling Mr. Harper" is a splendid example of contemporary romance that balances sweet, tender moments with the complexities of modern relationships. Elle Nicoll has crafted a world where heart and tenacity go hand in hand, and where love is not just an emotion, but a journey of self-discovery and mutual understanding. Fans of the genre will find much to enjoy and reflect upon, while newcomers might be enthralled enough to explore further within this beguiling literary domain.

Overall, Elle Nicoll's "Handling Mr. Harper" affirms her ability to weave engaging tales that speak to the heart’s desires and the mind’s observations. It’s a romance that doesn’t just entertain but resonates on a deeper level, making it a rewarding read for those who cherish a well-told love story.