I almost DNF'd this book early on, and then at several points beyond that, and really I should have. Instead, my analytical side continually won in the argument I was having with myself to keep reading, and here are the takeaways, in order from worst to best (***spoilers under "The Good" section***):
The Ugly
The editing is shockingly bad. I highlighted over 1800 errors. This is something I do in everything I read, and something with a lot of errors I typically DNF, but I was 1) trying to understand why I have seen so many recommendations for this book in my groups and 2) at a certain point deciding I wanted to see just what the total number would be, even though I wasn't super careful about catching everything since I kept arguing with myself on quitting. I also usually use different color highlighters for different types of errors, so I can delineate between incorrect/missing words, etc. and punctuation-type errors but there were so many per page/screen in this book that I got lazy about changing colors in this case. I will say that at least half, if not more, were for incorrect punctuation related to dialogue/dialogue tagging, so that is clearly an issue for this author/their editor. There were consistent homophone and missing or erroneous comma placements as well. There were also some incomplete/incorrect sentences/sentence structures that I think may have been stylistic choices on the author's part, however with the sheer number of obvious errors of other kinds, I can't be sure they were deliberate. Taken altogether, this made the book very difficult to read and if I hadn't paid for it or was in a different mood I would have DNF'd in the first 10%.
The Bad
The story just does not come together. There is a lack of development overall, lack of specific scenes or dialogue moving along the plot or deepening the relationship, and a total lack of clarity in the writing - perhaps meant to be mysterious but the major events are telegraphed from the beginning so the mishmash of non-specific, unnecessary padding and telling (vs. showing) just makes for a boring muddle. Thriller, this was definitely not.
>>>>>>>>>>> SPOILERS BELOW<<<<<<<<<<<<<<<
The Good *with caveats*
The basic ideas of this story I LOVE, which is why marketing tropes and social media recs drew me in. Rea and Cohen are step-siblings, whose families join when she is 9 and he is 16 (I think). I always love a step-sibling romance where they meet when young as when they are close to or almost adults that forbidden element is just not there. I LOVE that Cohen is a germaphobe (and the reason why he is). I really wanted to see his OCD manifestations in detail, and watch him slowly overcome it for touching just Rea, and that is not the case, not really. It's disappointing that even with this dynamic, the hero is a manwhore (with weakly explored D/s kinks too). I think it would have been way more interesting for him to be a virgin who overcomes his issues solely because of his obsession with Rea. Speaking of, I LOVE his obsession with Rea and several of the ways it manifests, from the very beginning (shown in periodic flashbacks). I like the possessiveness, the control of every aspect of her life, and the drastic and immoral things he does to tie her to him. That is to say, I like the ideas of all of those things, the potential of what these ideas could be in a well-written (and edited) book. So many of these dynamics, ideas and even some specific scenes are really interesting and are things I want to read about, they are just not executed well overall, and that is such a shame.