They were friendly, I went to the address reporting counter with the usual documents (my house booklet) to update and then back to the extension counter, no problem. Oh and I took a selfie too.
Yes, I spent a couple of nights in a hotel once, and when I applied a few months later to get a visa extension immigration warned me that I haven't reported that I went back home after that holiday.
If you send your password to someone doing the job for you, don't forget to join a signed power of attorney (you can get the form at the local immigration) with a copy of your passport bio page signed by you.