How effective is it to complete all additional requests?

Generally, completing all additional requests can be considered highly effective as it may demonstrate thoroughness, reliability, and a commitment to meeting all requirements. However, if these additional requests are unreasonable or outside the scope of the initial agreement, completing them might not always be the most effective approach.

In a general sense, if we assume the additional requests are reasonable and within the capacity to complete, the answer would likely be towards the “Highly effective” end of the scale.