I have seen Mamma Mia 4 times... NYC twice, Minneapolis, and at the Gammage. Fortunately I am very familiar with the story and the music. Thank goodness for that because I had a difficult time hearing. I sat in the 5th row, and at times cupped my ears to hear better. I read through all the Gammage reviews posted on Yelp and see that I am not alone. I noticed they turned up the volume during the most engaging parts to build excitement. I am sad to say, this is not unusual as this acoustic problem was evident at the Lion King and two other productions my wife and I have attended. I don't mind the condition of the facilities and lack of bathrooms because I sprint to be the first in line. It's satisfying to walk past the long line waiting to use the men's room when I return to the lobby. I do care that I can't have clear sound.