What is your opinion of the book "Properties of the Qur'an" by Imam Abu Hamid al-Ghazali, and are there any good similar books about it?

We have not seen the book mentioned, but Al-Suyuti stated in Al-Itqan that Al-Ghazali authored it, and that the basis for what is mentioned in it is often the experiences of the righteous. One benefits from the properties (khawass) of the Quran if one believes in it, acts upon it, ponders its meanings, purifies their heart for Allah, fills their heart with it, and acts with their limbs.