When we reach for it
Clients already running it. We join the process that exists rather than asking an organisation to change tools for us. Asking an organisation to change how it plans in order to work with a supplier is a cost we would be imposing rather than absorbing.
When we would argue against it
Nothing we would argue about. The tool is rarely the problem; the number of required fields usually is. Configured without restraint it becomes a reporting instrument rather than a working tool, and a board that no longer reflects reality is a delivery problem showing up in software.
What it looks like in delivery
Their board, their workflow, their definition of done — with the estimate and the actual both visible. We work in the open on their board, so anyone can see what is in progress without asking — which is also what makes a weekly demonstration a demonstration rather than a status report.