Product review (4 stars): Great For Standard Clogs
This is a very handy tool to have around the house and to clean out your dryer vent.  There is a youtube video that is very helpful on how to use it.  For my condo, this worked 75%.  It cleaned out most of the vent however, there is a section that is still clogged and none of the included tools seem to be able to get the clogged cleaned out.  The hook doesn't want to grab onto anything - most likely because it's lint - and the long brush can't bend around the corners to get to the clog.  I tried the wide brush but it wouldn't go far enough.  I still like this item because given the fact that my vent was clogged since before I started living there, I think it did a good job.  If my vent was cleaned out and was recently clogged, I strongly believe this tool would have gotten rid of it.