I liked this Darcy book. The romance was straightforward, with Hero & heroine both open about their attraction to each other. The challenge is how Hero's attitude towards his niece determined the nature of their r/s. I liked heroine's moral standards & her willingness to stick to them no matter how tempting it was to give in to her attraction to Hero. Heroine knew herself well & was self-confident. Hero's alpha-ness hid a vulnerability to being hurt again. Yet he was able to take heroine's confrontation & was open to changing his mistakes.
Sexual chemistry & sex scenes were good as usual Darcy. Dialogue & emotional involvement were good as well, making this book a quick read.