Product review (2 stars): Does great when it works
I bought a Whirlpool Duet washer and dryer set about three years ago.  The washer worked wonderfully for the first year, then we started having error codes indicating that the washer was not draining quickly enough.  Through Youtube, we saw how you could clean out the trap below the washer.

Every few weeks we have to clean out the trap.  I'm not sure why this washer is designed this way, but it's a pain in the neck.  Essentially, things like loose coins end up there, and after a couple accumulate, along with the normal lint associated with washing, the washer will stop working.

A couple of months ago, cleaning out the trap wouldn't even make it work.  A repairman came, and $200 later he had replaced the pump -- you guessed it -- the pump near the trap.

I have never had these types of problems with any other washer I've owned.  If this is going to happen so frequently, why place the trap in a place that's so inconvenient?  Essentially, this is like the dryer filter, except it's below the washer and you have to tilt up the washer to get the cover off and get to it.

On a positive note, the amount of water this washer uses is incredible.  My water bill was cut in half.

As you can see, I'm not the typical disgruntled customer spreading hate, as I like this when it works, and see a clear design flaw that keeps a great washer from washing all of the time.