Opera House is a very technical climb compared to other slab climbs in the area. The moves are relatively easy to figure out but doing the moves may not be as easy. The second half of the climb is on a much lower angle slab and in my opinion, is much easier. The two cruxes are the first two moves of the climb and getting over the edge onto the second half of the slab. Opera House shares anchors with Phantom Crack far left, and falling near the beginning might make for a nice swing. 

The route starts next to or on a small outcrop of rock around the corner of Phantom Crack far left.

Two anchors at the top.