In my role there are not many KPIs or targets just people benefiting from us working together.
Therefore for me one of the most important parts of the session is the time when I ask for feedback positive or negative on that days session as it helps me improve myself and service.
But there is nothing more rewarding than when a client has finished working with me and is using all the skills they have in their daily life sending you a message.
With their permission they have been willing to share this.