By now you know I think this book is very descriptive. They say this is very good for a first timer. Maybe so. However one trick writers use is to write a full background on each character to keep from having conflicts later and to help with keeping them from looking two dimensional. However it is not necessary to print the entire bio on someone before they even say "HI." Some description of the environment fills out a picture. Too much description obscures the story like snow falling on cedars. And it is O.K to throw in a "red herring? now and then to augment the clues. It is annoying to throw in tons of details that are not relevant to the story.
If you like lots of fluff around your mystery and find the fluff more important then who-done-it, then you will like this book.