Okay, this book deserves more than a 3, but not a 4.
I read this "anthology" as three separate volumes.
Volume 1 "Much to Conceal" begins after Elizabeth returns to Cheapside after leaving Rosings Park/Hunsford. Elizabeth attempts to hide from Darcy at an exhibit she and Jane attend in London. It ends with Darcy's second proposal. There is a promise of an HEA, but the story feels unfinished. (Now, I know many authors write their stories as such, keeping the reader hanging on for the next volume. I just felt shortchanged as Volume 1 is only 7 chapters and leaves off when Darcy goes off to Longbourn to earn Mr. Bennet's permission to marry Elizabeth.)
This short volume contains multiple split infinitives: to now be, to finally enter, to forever color, to fully feel, to finally arrive, to soon become, etc.
Volume 2 "A Winter Wrong" begins with an epidemic. The Meryton neighborhood believe the Bingleys and Darcy have brought on a contagion. In this "date," Darcy has second thoughts of marrying Elizabeth after Mr. Bennet dies and Mr. Collins succeeds to the estate. [Again, there is the promise of a happily ever after, but things are left in the air with Wickham's abandonment of Lydia.]
The author uses "Sir Lucas." Both a knight and a baronet are addressed as "Sir (first name)." The man is "Sir William."
Ashtrays were placed into use earlier, but did not become popular until the mid 1800s. The word "ashtray" did not become popular until 1926.
Uses split infinitives: to not ride, to instantly inherit, to respectfully mourn, to truly weigh, etc.
Uses "Mr. Collin's book" (should be "Mr. Collins's book).
The author often switches point of view from Darcy and Elizabeth to Mr. Gardiner, Mrs. Bennet, Kitty Bennet, and Mrs. Gardiner.
Volume 3 "By Consequence of Marriage" has 50 chapters. This book begins with Georgiana eloping with Mr. Wickham. Darcy and the colonel search for her for three weeks. Lady Matlock says he must give the impression that Georgiana is with her tutors by leaving London. He joins Bingley at Netherfield.
The author switches point of view from either of the two main characters in chapters 2, 3, 5, 12, 13, 21, 26, 27, 28, 29, 44, 47, and 48.
There are historical errors such as continuing to call "Sir William" "Sir Lucas," as well as having the engagement announced in the newspapers. Occasionally a wedding would be announced after the fact, but not engagements.
Darcy's will cannot take funds away from the real property, meaning the estate.
A "bastard" cannot inherit an estate in England.