The well-known Oslo cordon toll ring was transformed into a congestion charging scheme in 2017. The transformation implied higher toll rates during rush hours and lower rates during nonrush hours, and battery-driven electric vehicles (BEVs) were exempted from paying tolls as a means of enhancing the uptake of BEVs. This paper studies road users' attitudes towards the transformation that took place. The rationale is that studies examining road users' attitudes towards such transformations are lacking in the transportation literature. We use the results of a survey conducted a month after the transformation, and a question was added regarding users' attitudes towards the transformation. The dataset consists of 2005 responses. We use both descriptive statistics and logit-based regression analyses to assess the data. The results reveal that the average road user has a negative attitude towards the transformation, most likely because the transformation increased the travel cost for the average user. Our results add value to the literature and for researchers and policymakers who may want to consider similar transformations, and groups of users who need to be convinced of the usefulness of congestion charging are identified.