On time, and the job was completed without any "extra's, because we didn't expect this and we didn't expect that."
Maybe you can get the job done for less, but my job was a relatively difficult replacement of the water supply line to the house. The crew showed up in the morning and I had water back on in the early afternoon, and 70 feet of sub terrain new piping. The digging was done with minimal disruption to the garden, and the work passed inspection the first time. The finished work exceeded my expectations.