All estimates were wrong, and the tower reopened on December 15, 2001.
People will now be charged $13.30 (American) for admission to the Tower. Rather than allowing unlimited visitors, tour groups will go up in groups of about 30 during the hours between 9:00 am and 5:00 pm.
The renovation plan involved attaching a pair of steel "suspenders" to the tower. Soil under its foundations was then excavated to try to realign the Tower. The seven bells in it's belltower were not allowed to ring during the modifications for fear that their vibrations would threaten the tower's stability. They rang for the first time in ten years on December 15, 2001.
During the modifications, engineers shaved 17 inches off the tower's lean and guided the monument back to where it was in 1838. The highly expensive difference ($27 million, plus an additional $4.3 million to repair damages to the marble interior) is not noticeable to the naked eye.
The tower now leans 13.5 feet off the perpendicular. It will take nearly three centuries for the Tower to return to it's angle of inclination in 1990.