Using advanced in-house schematic capture software, complete with a library of custom symbols and proven circuit macros, we often find our first-pass circuit design and PCB layout, works exactly as expected.
This means it is rare for us to go beyond Rev#0 PCBs.
The tight integration found between the schematic data and subsequent PCB layout continues through to the mechanical design, ensuring that the circuit layout not only 100% matches the design intent, but that the PCB subsequently fits within the final enclosure.