Good: At 4 bucks, this book has value because there are actually lots of photos. Speed flipping, I counted over 130 images. Zoomable pics with little bad pixelization. Decently capable photography. Fast loading.
Bad: While a ton of images are here... maybe 15-20% are variations of the same pose. The lighting is focused on the model's left and the room is a little too darkened so I did not care for the book much.
I'd say it's definitely worth a free download, and at 4 dollars you're getting lots of photos. There's full nudity on the artistic side and I wouldn't call much of the interior erotic.