Everyone with a lunch ADR between 1 and 1:40 is automatically given a ticket for the 3:15 show. I would recommend making your ADR as close to 1 as possible to give yourself as much time as possible to be seated (just in case the restaurant is running behind schedule), eat and (make the long) walk over to the Nemo theater which is at the opposite end of AK from Tusker House.
The seats are in the front right section facing the stage. A little of the action takes place behind you, but they are very good seats overall.
I've also read that they recently started having the same offer for ADRs between 1:50 and 2:45 for the 4:45 show.
The FP for the stage shows was a trial run that is no longer in effect.
Kim T