What’s your use case for the adapter. To use the free service on a non eSIM capable phone? Or for some other stuff? Thanks for the info about the provider. Didn’t hear about the offering yet.
Yes. I paid 5 €/month for LIDL Connect for 1 GB. I don't need much mobile data and in just a few months the cost of the adapter is amortized. It might also come handy in the future if I travel abroad.