We opted for 186 Transition stream, this involves your partners work sponsoring them for permanent employment and residency, however your partner would be expected to stay with that company for a minimum of 2 years (This is not mandatory but technically does breach conditions in terms of moral obligations if they were to leave their job within the 2 year period). We collected all the evidence and lodged ourselves it was pretty straight forward with the help of this forum. The application itself cost about 5k. The reason we opted for this is because it seemed less hassle, no skills assessment or english test was required, which wouldn't have been the case if we had opted for direct entry.