Something that would make the goals and targets feature more usable is if you can report on goals on space, folder and list level dashboards as well as report on targets in any way (there is no way to see targets easily in a dashboard or otherwise).

It would also be helpful if there were a goal and target field that pulls in the associated goal and target for a task. This would be helpful for grouping tasks in certain views, or in widgets, as well as overall reporting on how much got done on specific goals/targets.