I would think about going with an electric demolition hammer or chipping hammer. if you don't try to get big chunks, but work on small pieces. it should work OK.
It will get dust everywhere. get as much exhaust as you can. were a good dustmask/ respirator and ear pro.
Also keep an eye out for what is below it. you may end up dropping the plaster off the ceiling below it.
Everyone is entitled to their own opinion, but not their own facts