Just done a plastering job: stripping off 50m of ceiling coving and three ceiling roses, chiselling off old plaster high points, reboarding patches, plastering perimeter where plasterboard exposed and ceiling rose area, pva all ceiling areas twice, then plastering over existing artex in two coats. One room 12sqm, hallway 20sqm, and lounge 30sqm. This took two plasters and a labourer four days, client thought this to much time. Was he right.