I have an extension table for my machine, but only use it when I'm sewing away from home. I prefer my machine set into my desk. Once you try have your machine set down into a table, it is much harder to use it on top of a table. Eleanor Burns has a free video on her site for converting a dining table into a quilting table. This is how we did my desk. However, if a desk isn't a possibility, an extension table like you are looking at is a big improvement over just putting your machine on top of a table.