Currently, our main work in DevOps gets done within Task items which also have effort spent inside. These however are not a sync-option within the "To-Do" level of Aha!.
The fields "Name, Description, Assigned to, Due Date (and maybe effort or other custom fields) have equivalents in DevOps that could be mapped or used for summarizing "actual" efforts up from underlying tasks compared towards original efforts estimated.
This is particularly useful as Tasks in DevOps can be associated to any other item (Epic, Feature, Requirement) and match the description of "To-Do" quite well. They also reflect all "necessary on the side work" that probably wasn't part of initial planning.