Have any of you purchased a portable ice maker for your house? My refridgerator has a built-in ice maker, but it can't really keep up when the house is fully occupied and the weather is hot.   I would really like to install one of those under-the counter models, but I don't have the space in the main kitchen, so a portable sounds like a good compromise.

If you have one and like it, I'd love to hear the brand or model and whether your guests can figure out how to use it.