Just like all construction projects, it took longer than the original estimates ("eight years later and nine times costlier than originally estimated").
But the Theatre Development Fund's TKTS booth in Duffy Square (the place to get reduced price day-of-show tickets to Broadway and Off-Broadway shows) is back open for business again.
The improvements: More windows; A huge set of steps for people to sit while their friends and family stand in line; Credit cards now accepted.
The NYTimes article has lots of pictures, as well as an interactive graphic showing just how complex the structure actually is.
And the webcam that shows Times Square/Duffy Square can be found here.