If this wasn't billed as a Pride and Prejudice variation, firstly I wouldn't have bought it (the power of association!), and secondly, I would probably have enjoyed it.
As a Pride and Prejudice add on, it was unbelievable, the characters were as unlike the originals as defied belief, and it contains a lot of seemingly unnecessary sex and jaw-droppingly bad misunderstandings. This is all very well and a bit of fun in your standard regency romance, but please, not when the author is suggesting alterations for one of the most famous books of all time.
To be fair, Reynolds is putting herself at a bit of a disadvantage by linking herself to arguably one of the greatest authors ever to have written, but she should give herself some credit - stop hanging on the coat tails of Austen and write something completely her own.
By all means buy this book, as far as regency romances go this is plenty of fun, but pretend that this Darcy and 'Eliza' (Lizzy, surely!) are nothing to do with the originals.