I bought 4 at a used book store for 25 cents each. I didn’t have the time to look them over, but liked them well enough at first glance.
My 10YO son who is an avid reader and loves classics quickly realized they were twaddle for him for lack of a better way of putting it.
However, for my 12YO son, who is an ELL student and just starting to enjoy reading in English (he still reads in Mandarin for his free reading), these books were the perfect choice. Now he is starting to pick up the unabridged versions and thumb through them.
I have found in our family that they definitely have a place. If you have a reluctant reader or a child who has learning challenges, these might be a great find (or gift).