Invariably just use the most energy-efficient 'Eco' program and run it overnight as it takes around 4.5-5 hours. It is quiet, everything comes out sparkling clean and bone dry (even plastics). Have also run more intensive and quicker programs where necessary, and results are always great (much better than our previous dishwasher, and all with considerably less energy & water consumed). Overall very happy with this dishwasher! :)