Product review (4 stars): Saved us from having to replace the whole unit
This is a nice way to make you clothes washer feel new again.  We had started to experience some fungal like growth on the boot after 5 years of ownership.  It was affecting the smell of our laundry.  I replaced the boot and the machine is like new again.  Hope to get another five years of use.

The first time through this was a little hard to get on the washer.  I recommend watching a replacement video before you start and reading the printed instructions as well.  The two together should give you a good grasp of the process and tricks. The most important part of replacement for me was putting the large inner retaining spring onto the boot.  Once the boot is attached to the tub make sure to evenly stretch the spring starting at 12 o'clock.  Then place the spacers (spacers are included with the boot) first at 2 o'clock then work back to the left and place the second one at 9 o'clock.  The spring is then fitted around the rest of the boot with easy stretching.

Recommend for DIYers with decent skill level.  If you haven't done this kind of thing before take your time. It's a nice fix but the part isn't cheap and you want to put it in right.