Public engagement with science in New Zealand adopted a more participatory approach with the 2014 launch of the Strategic Plan for Science in Society, joining the groundswell of citizen science research seen internationally. This study interrogates the views of scientists on the benefits and limitations of citizen science (CS) before and several years after the strategy was launched. Three groups of scientists were compared: NZ marine scientists with an international group of marine scientists around the time of launch, and NZ marine scientists four years later. At initial comparison NZ and international scientists held largely similar views on the benefits and limitations of CS, with only a few exceptions. Awareness of and involvement in CS projects were significantly higher in NZ four years later. Scientists with CS experience generally perceived more benefits, such as expanded data collection, community engagement and public awareness of science. The most frequently identified limitation was quality of data. Although this perception increased in the NZ cohort, the vast majority of scientists felt limitations could be overcome by careful project design and improved infrastructure support and professional recognition. These findings guide further recommendations for high level support systems to facilitate scientists’ involvement in citizen science.