Product review (5 stars): No more water on the laundry room floor!!!
It was just what I needed to fix my LG front load washer.  It took me some time to track down where the leak was coming from but then I found the hole in the door boot seal.

Not an easy fix but definitely doable.  I highly recommend the step by step guide on youtube.  http://youtu.be/tbFdTFrBC8Q

We decided to try and do it without the expensive spring tool.  It probably would have been easier with the tool, but my daugher and I managed to get both rings on and off without it.  I'm glad I did not buy it, but like I said it would have saved some time.