I had "The In-Between" in paperback, under its original title. I remembered it as being a 5 star book that I loved. I replaced the DTB recently, when I saw there was a Kindle version available, and I eagerly re-read it. My tastes must have changed, because I did not enjoy the book as much this time. Some parts of the book even felt a bit flat and slow this time around.
I thought the heroine was too antagonistic towards the hero at times. I understood that she was wary of men after a bad marriage, but I still thought she was too unpleasant initially. The hero also had too many fatal flaws to make him entirely sympathetic. Supposedly he loves his sister and her family, but avoids them like the plague, even when he knows they are hurt by his attitude. He loves the heroine, but says he can't settle down in one place, so he decides to drag her along on his wanderings. This is a romance, so we know there is a HEA, but I didn't feel that taking the heroine with him when he wanders was a true HEA. What happens if they have children who will want to make friends and who will have to attend school? What happens if the heroine gets tired of moving every few months? This ending just did not satisfy my expectations for HEA, although it obviously did several years ago when I first read it.
The teenage ghosts were likeable characters and many of their scenes were well written, with some original takes on the usual ghost stories. The villain was suitably ordinary, narcissistic and evil. He was definitely easy to hate.
Overall, the book was very well-written, with only a few typos that did not detract from the flow or enjoyment of the book. It is a 'clean' book suitable for anyone who likes a traditional style romance with a paranormal angle.