Product review (5 stars): but am pretty handy and a DIY-er
Took a chance after reading the amazon reviews regarding this product's installation.  I watched the yoo toobe video once and it seem straight forward, I have Whirlpool Duet model WFW9750WWOO and went on ebay actually to confirm that this part fits my machine.  Amazon did not list my machine as one that it would fit.  The replacement was identical to the one I removed.  We developed a tear in the outer lip of the bellow (washer seal) and therefore a leak during washings.  It took me about 1.5 hours to do this with my wife's help to hold things and keep track of screws.  You need the torx bits and one Philips bit, and a flat head to pry a few tabs.  Disassembly was slow and methodical because I have never repaired a washer before, but am pretty handy and a DIY-er.  Once installed, we ran a full load of laundry and no leak apparent, and the front seal seems solid, no strange noises or rattles.  I did end up with one extra screw -- hate that, right!?  Went through it all and couldn't find where it belonged and everything seemed solid, so no worries.  Keep track of your screws

Thanks to all for their reviews, without this I would have paid $300 to have this fixed on my 7 year old washer.