Product review (5 stars): Works great.
I use this in our little casita because the construction guys never put a vent hole in the wall for the dryer. This works great during the winter when I don't want to leave a window open and stick the hose out. It is especially nice when it is -17 outside! It is another way to heat our small house. You put water in the plastic part and that catches the lint. I didn't notice any lint flying around the house (at least nothing extra) but figured I could always put a nylon around the end if it didn't catch enough particulates. Cheap, easy to install and effective.