In territory that was overworked, there definitely was stress when you went out in field service. You knocked on doors knowing that the people inside knew it was JWs, and knowing that they were probably quite tired of it. You hoped that the worst of it was just people saying "no thanks" and that was it.
The reporting requirements, and the pressure to post sufficient hours each month, made for a very unpleasant experience for both JWs and households that did not want to be bothered yet again by a knock at the door on a weekend morning. So it was both stressful and unrewarding. I don't recall any particular brothers or sisters who looked forward to it, but I can remember how happy we were when the hour or two was over.