The action starts on page one and keeps on going. After all these books I am still able to devour what comes out from this series. The characters are consistent, yet grow and develop over the books and the cases most of the time have a different feel or spin. This is one where I am again amazed at how the author makes it fresh.
I love how the relationship between Eve and Roarke develops even more. While there are still some things like "unspoken rules" one or the other will try to understand, the natural flow and routine they have as a couple at this point is great. It is a long way from where they started to navigate life with an other. The friendships Eve has developed through the series has much of the same feel of solid ground compared to when the people first appeared and in some cases shoved themselves into her life.
If you are going to read these I suggest started from book 1 to enjoy and understand the characters and these developed relationships. As far as the "cases" they work go some books like this you don't need the background to understand and appreciate that part of the book, but on the whole read the series in order to really get the proper enjoyment.