I liked being able to read all 3 books in The Unforgettable Southern Billionaires together and recommend that you do. You really should read them in order to get the story completely.
We watch as Desiree and Grant's relationship progresses, becoming hotter and hotter. These characters are very likable but Grant's father, not so much. Let me stress that he's not a bad character, he's just not a nice man. Every story needs a villain and he's it in this one.
I liked the suspense in this book. Actually, I liked the whole book - the plot, suspense, sex scenes, romance and the family sections.
If you are looking for a nice, quick romantic suspense, look no further.