Do you have an actual question about plaster and/or veneer plaster? Or are you just wondering what's popular? If the former, it would expedite the process of getting answers if you just go ahead and ask the question(s), rather than making it a two-step (or more) process.

In four of our rooms, we put a venetian plaster veneer or polished plaster over the drywall. Is that what you are referring to?