Product review (1 stars): I'm happy I bought the extended warranty.
I purchased this machine in November 2012.  In February 2014, it started to become unbalanced during the final spin and clothes were getting caught under the agitator.  It sounded like I had a load of hammers in there and the machine was using them to beat itself to death.  Fortunately, I'd purchased the extended warranty.  A service tech came the first week in March 2014 and replaced the motor, and the machine worked fine for a while.  In early May 2014, it began doing the same thing as it had before.  The next service tech to look at the machine said it needed a new agitator.  When the tech took a while to return to install the new agitator, I experimented to see if I could find a solution and here's what I found:  First, make sure the machine is level.  I've needed to check this frequently because it doesn't stay level for very long.  Second, I'm now using the Power Rinse setting all the time.  I know this setting uses more water, which is unfortunate.  However, the combination of these two things kept the problem from recurring during the month I waited for the return of the service tech.