How sound is the "My mouth with longing" method for completing the recitation of the Qur'an in seven days? And is it better for the duration of completing the recitation of the Qur'an to be seven days?

It is best for a Muslim to occupy their time with reading and contemplating the Quran, while maintaining a consistent daily portion. The custom of the Salaf regarding the completion of the Quran varied, with most of them completing it in seven days. The method "Fami bi Shawq" (فمي بشوق) is a way to complete the Quran in seven days, where each letter of the phrase symbolizes the beginning of the surahs to be recited on each respective day. There is no harm in using this method. The optimal period for completing the Quran is every week, as reported from the Prophet, peace and blessings be upon him, to Abdullah ibn Amr ibn al-Aas.