"Couldn't be easier"
Having read the previous poor reviews, thought I needed to sign in and say how good and easy I find this is to use. Semi skimmed milk to the fill line, pump until the milk at least doubles in size which only takes a minute then microwave for about 20 seconds. Most of the milk turns to a solid foam, so solid that it has to be scraped out. Only bought it in store windermere yesterday and used it 6 times, perfect every time.