Combined, the collision and evaporation rates can be used to calculate the cluster formation rate using, for instance, the Atmospheric Cluster Dynamics Code (ACDC). This gives knowledge about the potential NPF rate of the species. However, the accuracy of the calculated NPF rates is very dependent on the applied QC methods. This implies that one can essentially get the NPF rate one is after, and thereby, accurate benchmarks are important to make an informed and unbiased decision on what QC level of theory to apply.