What are the virtues of completing the Qur`an more than once during Ramadan?

Ramadan is the month of the Qur`an. Allah says:
Ramadan is the month in which the Qur`an, a guidance for the people and clear proofs of guidance and criterion, was revealed. So whoever sights [the new moon of] the month, let him fast it; and whoever is ill or on a journey—then an equal number of other days. Allah intends for you ease and does not intend for you hardship and [wants] for you to complete the period and to glorify for that [to] which He had guided you; and perhaps you will be grateful [Al-Baqarah, 185].

Indeed, We sent it down during a blessed night. Indeed, We were to warn [mankind] [Ad-Dukhan, 3].

Indeed, We sent the Qur`an down during the Night of Decree [Al-Qadr, 1].

'Abbas, may Allah be pleased with him, said: "The prophet was the most generous of people, and he was most generous during Ramadan when Jibril would meet him. Jibril used to meet [the prophet] every night of Ramadan to teach him the Qur`an. Jibril would find him quick to extend his generosity—even quicker than the strongest wind" [Bukhari and Muslim].

Fatima, may Allah be pleased with her, narrated that her father informed her that Jibril, peace be upon him, would recite the Qur`an to him once a year but recited it twice on the year of his death [Bukhari and Muslim].

The above hadiths demonstrate the preference of reciting the Qur`an and completing it once or more than once in Ramadan and reciting it day or night in abundance though at night is better and garners a greater reward. Allah says:
Night prayers makes a deeper impression and sharpen words [Al-Muzammil, 6].

In a hadith Qudsi, Allah says: "My servant continues to draw closer to me with supererogatory prayers so that I shall love him. If I love him, I shall be the hearing with which he hears, his sight with which he sees, his hands with which he holds, and his feet with which he walks. If he asks [something] of Me, I will surely give it to him and if he seeks takes refuge in me I will grant it to him. I do not hesitate about anything as much as I hesitate about [seizing] the soul of a faithful servant; he hates death and I hate hurting him" [Bukhari].
Allah Almighty knows best.