I am very pleased with this book. It has a lot of good sounding recipes in it - especially smoothies. I already had a copy and got this one for our daughter. I found an old model Vitamix machine at a garage sale and it didn't have a book with it. I was excited to find my copy of this book. Our daughter has a Ninja and didn't have a book, so I ordered this one for her because I know she can use a lot of the recipes, too. I also ordered a copy of Bob Warden's Ninja Master Prep Cookbook which is written for her machine. We are both trying to eat healthier and lose weight, so we are both interested in trying smoothies to help us. I recommend this to anyone with a machine who doesn't have a book with it.