$50 tickets! I wasn't sure how the "limited view" seats on the sides of the Sydney Opera House would do, but they were fine. My advice for next time would be to choose the corner seats, even if it means not sitting side by side with your group, and to go for further back on the lower row.
The photo below was taken from my seat at the Sydney Opera House before the show...right before
the usher scolded me for breaking the no photos rule (and right before Sexy Nerd said "I told you so").
See the orchestra? The stage pulls back at the start of the show and after intermission and you can see everyone.