Definately go with the Dana Carpenders 15 minute LC recipes over the 500 meals anyday! The recipes are superb!!!! I haven't tried one recipe from it that I haven't loved and you can make it in 15 minutes or less so you just can't beat that! Plus the 15 minute cook time has made for shorter grocery lists. (LOL I am sounding like a freaken advertisement) But really if I had could only keep one of my low carb books.. that would be the one I choose.