Miller Auditorium has three separate seating sections, the Orchestra level, the Grand Tier level and the Balcony level. Each seating level is divided into two seating areas: left and right. Miller Auditorium employs students from the University, some as part of Work Study. The performances are also staffed in large part by volunteers from the community known as the Usher Corps.
Every year, Miller Auditorium is also host to the three Western Michigan University commencement ceremonies, in addition to hosting ceremonies for the local community college and various secondary schools in the area. The auditorium is available for rent by groups community.