I love books written in the first person - I feel I can immerse myself in the character much more fully, almost as if I were her or him, so this book suited me very well, with all but the Eileen Wilks story written that way.
Each of the four stories vary in the amount of reference to tattoos - in some it's a minor issue and in another it's a large part of the story - really all the tattoo references do is draw the book together into a compilation. Fine by me, as the stories themselves are absorbing and really, really well written.
Usually I dislike overtly "erotic" inserts into a story, on the basis that if I wanted to read soft porn, I'd buy a book devoted to it, and for me it detracts from the storyline: I find myself skipping pages to get back to the "real" action. However the ending to Etched in Silver by Yasmine Galenorn was pretty erotic rather than feeling like soft porn and didn't put me off at all, because it was very much a legitimite part of the story, and neither too explicit nor too long-lived.
I think this book will be a keeper for almost everyone who buys it, and I can't recommend it highly enough.