*I received an ARC copy of this book for an honest review*
Do pay attention to the s*xual assault warning - there's an extended scene involving this subject, so if that sounds like it may be triggering for you, then proceed with caution.
A tad slow in the beginning, though I think those who've read the previous books will be familiar with the kind of building-relationships-while-traveling thing that Pitch & Sickle tend to do, so if you're at this point (book 4), I doubt you'll mind much. There's still meaningful development in the slower bits, so it wasn't a problem for me. It picks up with a bang later and, as a side note, I thought the tension leading up to the main conflict was pretty well-crafted.
I think overall that if you've enjoyed the previous books, you'll enjoy this as well. It follows the same general formula, with some interesting new reveals and progress (more so than the previous books). I've really enjoyed this series thus far, and I look forward to seeing where this story leads.