I have landed early May. I told the customs/immigration officer I had a COPR with me. He has sendet me to an immigration office and there was asked me if the addres is still the same as on the COPR, what I have with me on arrival and if I have goods to follow. I also had to sign the COPR and declared that I never had done a crime or convict of a crime and that I had to go to court anywhere in the world (see your CORP). I had personal goods to follow, but I had prepared the documenten B4 already. The officier stampend the documents and has put a barcode on. That was al for immigration.
The next was customs. I just showed the customs officer all the documents I had showed the immigration officer and he has checked it quick, took the declaration Card I had filled in as far I could and I could go out of the airport where my wife was waiting for me.