This is a true completion. The author does not seem to change a word of Jane Austen's original fragment. She/He (I cannot tell the author's gender) does, however, divide it into 5 chapters.
Those few statements that we have read of the fates of the characters as told by Jane Austen's sister are faithfully presented here. I do not feel that the character development is very deep. Those characters that JA developed fairly completely are not changed. And, we do not learn a great deal more about those that she merely introduced.
All that said, I think that this story is quite a pleasant read. The characters all end as we have heard that JA intended them to. I was quite pleased with the plot to get them there. The lovers are kept apart by a misunderstanding but are finally united. The language is good, but there is no wit.
My only complaint is that the entire completion seemed extremely rushed. I wish that the characters and the plot had been fleshed out.
This book is extremely hard to find, but should you run across it,
I recommend that you give it a read. I do not think that you will
be sorry. It can be very expensive (the first price that I saw
for it was $895!) so unless you feel that you must own it (as I did although
I did not pay anywhere near that much for it!), I do not recommend purchasing
it. The story alone is not worth more than an average used book would
cost.