But I don't know much about them, and there seem to be a lot of models with different features. So what I'm wondering is which are essential, and which are just feeping creaturism?
This page shows the models sold by Argos, about the most ubiquitous store in the UK. Since I want to try this without spending a fortune I'm tempted to go for the cheaper Morphy-Richards model - they have a long history of making reasonably good domestic appliances such as electric blankets and hairdriers. but I don't know it if has all the features I need.
All comments gratefully received.