What are the advantages and disadvantages of a Databox?

Data boxes after 1. 1. 2023 and automatic set up

If you do not have a data box yet and you belong to one of the groups that will have the data box automatically set up, you can expect a letter from the Ministry of the Interior between 1 January 2023 and 31 March 2023. How does the process work, what to look out for...