I have been using the nuface mini since July. I use it 5 times a week for 20 to 30 minutes and haven't noticed any difference whatsoever,complete waste of my money. The device also switches off randomly,sometimes I can complete a 20 minute programme and other times it switches off every couple of minutes,I contacted Currentbody who I purchased it from and they said it was designed to turn off every 5 minutes?? Load of rubbish! Wished I hadn't bought it,£157 down the drain.